<s>[INST] hey., i'm 22 years old ,male , smoker and i suffer from hypotension , every time i take the readings is about 90/60 or 100/70 and i have symptoms of that which is blurry vision and dizzines ..., beside sometimes loose of appetite so that i can miss a meal ..., so what the causes of that , is there relationship between smoking and hypotension ?..thx [/INST] Hello!Thank you for asking on HCM!I understand your concern and would explain that low blood pressure is not related to smoking (in fact smoking can lead to high blood pressure or increased peripheral vascular resistance). I recommend performing some tests to investigate for the possible causes: - complete blood count for anemia- blood electrolytes for possible imbalance- thyroid hormone levels for possible thyroid dysfunction- vitamin D and vitamin B12 plasma levels- cortisol plasma levels for possible adrenal gland dysfunction- a Head Up Tilt test for possible orthostatic hypotension. You should discuss with your doctor on the above tests. Meanwhile I would recommend taking plenty of fluids to stay well hydrated and increase salt and caffeine intake in your diet. Hope you will find this answer helpful!Best wishes, Dr. Iliri </s>