My hair loss started when I took the Johnson & Johnson vaccine back in 2020. I lost most of my hair in the front. It has grown back but it's so thin. I used to have thick hair. Some medications will take hair out also.

I did a quick google- with thymus issues hair loss has been correlated per below

Alopecia areata is an infrequent but possible association with myasthenia gravis (MG). (Neurology Journals) A study found that 3% of MG patients had alopecia areata, and that the frequency increased to 17% for patients with a thymoma

There could be a range of things impacting hair loss including possibly other diseases and medications. This is good question for your Neurologist when you see next.

My wife seems to be loosing hair. I have not yet connected it with MG.

If I would quit worrying about it I would be losing less hair! I researched hair loss and came up with the number one product from Tea Tree. They make shampoos and conditioners so I’ll let you know in thirty days if it works as quite a few doctor sites support this product without pushing to purchase it. I think that is what impressed me. Whether they were leading dermatologists or MDs they were not selling the product, just talking about it along with other products.