I get that funny face too
Hi there!
Well, without a detailed clinical evaluation it would be difficult to determine the cause of your symptoms. Possibilities that may need to be considered include hormonal/ endocrine abnormalities, stress/ anxiety, low blood pressure, low blood sugar, electrolyte imbalance, a few neurological conditions etc. I would suggest considering an initial evaluation by an internist and depending on the cause diagnosed/ suspected it can be managed accordingly or specialist care may be sought.
Hope this is helpful.
Take care!