Recovering from one's first psychedelic trip isn't always a smooth transition. The effects linger for a couple of days, sometimes weeks depending on the individual and their subsequent other drug use. There isn't anything physically wrong with you and chances are you're dwelling on issues brought up from the trip. That feeling of anxiety should drift away as long as you rest up, eat well and occupy yourself. I think it's best for first-time trippers to have a few days off after their first psychedelic exploit. It gives one a chance to reflect and recover because a trip can be a confronting, introspective experience as opposed to the super happy time that some people predict.
And just a note for future posting, be aware of our no self-incrimination policy here at the forum. We don't discuss illegal activities. We may discuss the hypothetical or discuss the actions of people we've encountered.