Complex Symptoms: Seeking Clarity on Multiple Health Issues - Internal Medicine

Please clarify?

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Hello, Doctor.
I learned from the internet that online consultations are available here, so I took the liberty to seek your advice and express my highest respect for your dedication to helping others.
I have been troubled by several symptoms for a long time, but due to my busy and tiring schedule, I have not sought any treatment until recently when I realized I must face these issues.
However, multiple visits to the doctor have not led to any progress in my condition.
Below are my symptoms over the past year, and I hope you can clarify my concerns:
Symptoms (location, description):
1.
Frequently occurring (almost daily):
1.
Dry eyes
2.
Blurred vision (this condition has not improved even after getting new glasses)
3.
Easy fatigue (I still feel weak even after adequate rest)
4.
Insomnia and excessive daytime sleepiness (difficulty falling asleep at night, but once asleep, I cannot wake up to the alarm.
Sometimes I still feel lethargic shortly after waking up)
5.
Heart palpitations without external stimuli
6.
Tinnitus (lasting about five to fifteen seconds each time)
7.
Dry mouth and thirst, with a very high daily water intake
8.
Good appetite, but weight loss (my pants are two sizes smaller than last year)
9.
Occasional severe itching of the skin (especially after bathing or during seasonal changes), with my hands and feet (especially the feet) leaving many unsightly scars from scratching, and wounds that heal slowly.
2.
Occasionally occurring (once every few weeks or months):
1.
Unexplained nausea (sometimes I vomit a little, unsure if it's stomach acid or bile, but most of the time it's just dry heaving)
2.
Sudden dizziness with temporary vision loss (seeing stars, lasting about three to five seconds)
3.
I have observed folds on the surface of my eyeballs when looking in the mirror (meaning I fix my gaze on a specific point in the mirror while keeping my eyes still and turning my head; when turning to the right, the left surface of both eyes shows folds, and vice versa.
This observation occurs only when I am extremely fatigued)
4.
Memory decline (sometimes I forget whether I have eaten my last meal or what I ate, or even what day it is).
Duration of symptoms: These symptoms have been occurring consecutively for nearly a year (frequency and details have been included above).
Additional information: I am 36 years old and currently work in sales.
Recently, I visited a regional teaching hospital and consulted with a gastroenterologist, who noted that I have elevated blood pressure and slight thyroid enlargement with exophthalmos (high intraocular pressure) (my father and older sister both have a history of thyroid disease).
The doctor prescribed a week's worth of medication for palpitations and suggested I see an endocrinologist and dermatologist at another time.
On the same day, I also had a follow-up with the dermatologist, who only prescribed two doses of Hydrocortisone Cream (10mg/gm x 2 doses).
After returning home, I felt that the entire diagnostic process was somewhat misplaced and hasty.
I immediately researched some related information and found that I exhibit multiple symptoms associated with several conditions: hyperthyroidism (fatigue, excessive sleepiness, weight loss, dizziness, rapid heartbeat, tremors, etc.), hypothyroidism (high blood pressure, fatigue, low mood, etc.), liver dysfunction (nausea, vomiting, etc.), diabetes (fatigue, thirst, nausea, high blood pressure, increased appetite, easy hunger, weight loss, blurred vision, itchy skin, fatigue, etc.), lupus symptoms (fatigue, photosensitivity, discoid rash, thyroid issues, blurred vision, etc.), organic mental disorders (hyperthyroidism, fatigue, palpitations, dizziness, excessive sweating, difficulty sleeping, etc.), or even early signs of stroke, dementia, or decreased libido.
While I understand that many diseases can present with similar symptoms, these issues have significantly affected my work and daily life, and the prescriptions from both specialists seem to only address the symptoms rather than the root cause.
This has left me feeling quite anxious and frustrated.
I later made several calls to the hospital's pharmacist and attending physician to seek further clarification on the diagnosis, but still received no concrete conclusions.
As of now, I am still uncertain about what illness I have, which specialty I should consult, or whether it is already clear that my issues stem from metabolic problems or internal medicine.
Given the aforementioned symptoms, should I proactively request the hospital to conduct a more detailed diagnosis in a specific area to help clarify my condition and receive the most appropriate treatment?
Personal/Family Medical History:
1.
I had purpura during kindergarten.
2.
I had acute hepatitis in the third grade (age ten).
3.
Since then, I have rarely been ill, with only minor colds.
4.
My father and older sister both have a history of thyroid disease.
Personal Diet/Lifestyle Habits:
1.
My appetite is generally good, but sometimes I experience a lack of appetite during meal times.
2.
I have a significant smoking habit, about one to two packs a day.
3.
I tend to stay up late (due to insomnia).
Recently, I have started drinking alcohol before bed to help me sleep.
Thank you again for your response, and I wish you good health and happiness.

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hymanchen, 30~39 year old female. Ask Date: 2005/02/18