Well, if it's not vertigo, my first thought would be hypoglycemia (low blood sugar) could cause dizziness and nausea, especially if you go a long period between meals or are dieting (I can get this feeling if I don't eat much all day). Stress and anxiety could cause a panic attack.
I have a friend who has problems with his pituitary (low testosterone, low FSH, low LH, maybe caused by a prolactinoma). He sometimes gets really high blood pressure, to the point where his face turns red and he gets a bad headache, and sometimes he gets extreme hypoglycemia with this, too, and needs to get some sugar. So, maybe it is something with your pituitary. Cushing's (high cortisol) disease can also cause high blood pressure.
Mononucleosis (EBV) could cause dizziness and nausea, along with fatigue, swollen lymph nodes, sometimes cold symptoms like a sore throat. Goodluck!
Welcome to the MedHelp forum!
If you have a high BP then causes of high BP should be found out. Hyperthyroidism, renal artery stenosis (by dopplar studies or MRI), abnormal kidney function (by kidney function tests), hyper function of adrenals, Cushing’s syndrome, abnormal liver function, etc would have to be ruled out. A high BP itself can cause dizziness and nausea. I think you should discuss these possibilities with your doctor. It is difficult to comment beyond this without examining. A comprehensive investigation is required keeping all the points in mind. What you can do is reduce salt intake, take alcohol with caution or better avoid, quit smoking if you do and reduce total calorie intake in a day.
Hope this helps. Please let me know if there is any thing else and do keep me posted. Take care!
thanks, I just about given up on it really, the meds make me feel awful, BP meds and yet i still get readings at times of 180/100, or bit lower. Not sure why i feel so crappy lately...... My GP doesn't seem to worry either. I think they put it down to me just being anxious or something. Sick of the chest pains i get too at times, perhaps it's anxiety perhaps it's not. I guess i will find out if it get's serious enough least i will know then. I do however wonder if depression can make one's BP rise and feel cruddy.