I'm 62 days and I've had nonstop shakes for over a week now.
While working on getting into a doctor's appointment, my research has turned up with all the above suggestions, as well as adrenal fatigue.
I researched some supplements, b complex and multivitamins, valerian etc to combat it in the meantime. Some days it's highly noticeable and other days I can only feel it if I'm sitting still. It would be superrrrr great if it was just my nerves healing, haha. Optimism ftw.
If you just had a physical and everything was okay then, I would think your body is still having some adjustment pains for now
worth it to chase down a second opinion on what your doctor told you if you're not satisfied.