Understand this. It may take a while for you to learn to tolerate THC. There are two basic kinds, indica and sativa. Find out which one you've been taking and try the other one. Don't smoke it that's crazy. Take it in a vape pen but turn the vape pen to the lower of the three settings and take a tiny little puff and wait. The thing that fools a lot of people with the vape pen is that as you take the puff and I mean a puff not a long inhale, as you take the pup you taste nothing, and on the Excel with the lowest setting you'll probably see nothing. So before you give up on marijuana try that I don't know if it'll help you but I've never heard of anyone who got sick every time they took it. I've heard of getting sick because you took too much or more specifically you took too much too fast and I've heard of people getting sick the first couple of times they use it but this is stuff that generally passes. You got to believe good luck love and blessings