Are you sure what you got was good quality? I find Massachusetts to have the best quality stuff near me. I’ve purchased from New Jersey, but have questioned the quality on occasion. Once it was bad enough that I felt pretty off for a while, and felt like I was going to pass out, but ultimately didn’t. A couple of other times I’ve been stoned and just got light headed when I stood up, but that could also just be chalked up to getting up too quickly or not hydrating enough, and might’ve happened with or without weed.
It’s possible weed just doesn’t agree with you, or a certain strain. From your other comments your doctor told you not to smoke when you brought it up. None of us should contradict your doctor’s advice, but if you’re not going to listen to that, then I’d at least suggest getting a second opinion.