Hello I've been having a lot of symptoms lately, it started this last summer one day I got really dizzy and felt like I might pass out. I got scared it was from smoking somehow and quit cold turkey for 3 weeks throughout those 3 weeks it got worse. So I figured I stopped to fast and still smoke 1-2 a day, but now everyday I get super dizzy first time I went to the er they said it was inner ear and gave me antibiotics, I took them and went to an ent they said I was fine. But my symptoms are getting worse, dizzy, pounding heart beat when I smoke, even when I don't i get bad dizziness, sweats , feeling weak, I have low blood sugar and recently its been out of control also, I've been having headaches along with it all mainly left side of my head.. I'm scared I'm 26 and don't know what all of a sudden happened to me that I'm getting all these symptoms..