I m having fainting spells were I get so dizzy I nearly fall over, cold sweats and crazy rapid heart rate. It s happened quite a few times lately and I ve also lost 15-20 lbs this month without changing my diet. (Full of calories, fat, ect.) it s very concerning to me and not sure what it could be, going to see the doctor for me cost me in the ballpark of 160, which I don t have....so I ask u, what could this be. Thank you for your time.