I stopped smoking 4 months ago , ever since i find it very hard to exercise ,? -

I stopped smoking 4 months ago , ever since i find it very hard to exercise ,? -

i feel like my lungs are tar blocked or something , i get tired going up stairs and i don-t last more than 2 mins on the treadmill,ending up with 150+ heart beats/min and can hardly catch my breath.

so , is there something wrong ?, i guess there-s , i used to smoke only for 3 years and it was even casual not on regular basis .

tnx for the help.well you have been smoking for 3 years

I stopped smoking 4 months ago , ever since i find it very hard to exercise ,? -