So a "buddy" of mine tried weed. His experience was amazing, with vibrations, tingling sensation under the skin and the tunneling and everything, basically a great trip.
But here's the catch and it's happened for second time now, once he gets high, the effect lasts for more than a week at a time. So for first 2-3 days, he still feels lazy and can't focus. But the effect intensifies over the period and only after sleeping for literally like 18-20 hours a day helps to wear off the effect. Also the effects like memory loss and uninterested in everything persists.
Also other people using the same stuff don't go through same ordeal.