Hi there! My new ENT ordered a MRI for me at the end of the month. For unrelated reasons, I had a MRI in both 2014 and early 2016. I don't think the MRIs had any effect on my T, but I get insanely claustrophobic and anxious. I would say have the MRI for sure (knowing whether you have a blood clot is very important), but try to relax because spazzing during the MRI will definitely spike T. I know some places offer Xanax/Valium, but if that's not an option for you (like me who has to go to work after the MRI), I would try keeping a song or mantra in your head to focus on if you get spooked.