I've heard that medical exemptions are extremely difficult to get and Dr. Henry Ealy strongly advises getting a religious exemption. Take a listen to this podcast episode, where he outlines a step-by-step plan you can take that he says has been very successful. https://www.americaoutloud.com/covid-q-a-and-5th-circuit-decision-on-mandates-with-dr-henry-ealy/ The entire episode is pretty much about tjhis issue, but if you don't have the time, skip to about 15:30 and listen to that Q&A, then skip over to 45:50 - the end, which goes into detail about the process and has a couple of questions from the audience that are in the same situation as you. The 15 question list he talks about can be found here: https://www.americaoutloud.com/taking-the-fight-to-the-employer-or-school-covid-questions-exemptions/