A few months ago around thanksgiving , I was smoking pot and I took a couple of excedrine extra strength through the day probably 5 in 10 hrs .. But took 3 of those in about 2 hrs while I was smoking . After I was quite down smoking , I got extremely lighthead for a second and all of a sudden my heart started to pound outta my chest faster and harder than I ve ever felt it and I really felt like I was going to pass out . After I couple mins I started to get the shakes and could not calm down , my brother seen me and woke up my mom and she decided to give me 1 of her ativans just to calm down . It worked after about a half hr I was on cloud 9 and everything went away. The very next day I quit everything cold turkey was taking the excedrine for like 3 yrs everyday , and consumed a lot of caffiene I.e. Pop coffee . And also I smoked pot for 10 yrs and quit that to cold turkey , because what happed to me scared the hell out of me . Saw my GP about a month later , he did a full physical cbc , chemistry blood test , and even put me on a ecg . The blood test showed i had a little high alt of 59 . And my total baso esop nutra white blood count were high , and on the ecg he told me my p waves were a little abnormal , kinda like flatting out . After he made me monitor my bp for a few weeks , not about normal high but ever now and again I would feel week and get heart palpitations and my bp would be like 150-93 and heart rate would be 100 when I was resting . He basically just told me I needed to give my body time to get over the excedrine I was taking for 3 yrs . Since then I ve been getting heart palpaitations a few time a week , and I fatigue all the time . Get nervous when I have to do stuff like outside of the house, from time to time I get dizzy out of nowhere . My mom wants me to go see a heart docter to see if everything ok with my heart I m 27 not overweight or was ever particularly unheathly before . Wondering what you make think about my situation , my GP said it could be wpws but my heart rate don t really get that fast as svtc