subconscious after smoking up

Hi...I am a college stoner student...I smoked pot for nearly 3 years and left smoking few days back..since last 20-25 days I haven't smoked.But i smoked once or twice after that and i was feeling very dizzy & freaked out with red eyes.I never felt like this when i used to smoke on regular basis...At that time i tried lsd but had kinda bad trip,afterwards i quit smoking,and now when i smoke after so many days i feel so worried and weak...I don't why it is happening to me..Is it some sort of psychosis or disorder??Will i get ok if i start smoking again after 1-2 months gap?..plz help.

[HelpMe305]

I once smoked for a longer period of time and felt almost normal while high. Now since I rarely ever smoke. And I mean rarely. I actually get anxiety, shortness of breath and so now. I guess my point being, maybe there is z tolerance built to weed?