on and off of pot.

 I've spent the last 17 yrs. on and off of pot. When I was at my worst I was smoking about a 1/2 1/8 a day. Now my chest alway's feels tight (I know Shocking) and I'm suffering from cold sweats. I've been able to abstain from getting high for a few day's now and have quit in the past for around 90 day's then start back up again. What I'm noticing now is that I start to feel congested immediately after. Plus, now my hands and arms fall asleep at night. One of the reasons I start back up is I constantly feel irritable and somewhat unfocused with out it. Not trying to get into a discussion about how stupid I've been. Just trying to figure out how long this will last as I never had these problems in the past. Of coarse I wasn't 40 then.