Abby, I was diagnosed in 2005 -- had symptoms for at least 2 years prior to that -- so, I'm NO expert. Here is what I've learned:

My MG is worse when:
1. I don't get enough sleep
2. I am emotionally stressed/upset
3. I am sick/getting sick
4. I do not eat right or drink enough water or weak tea
5. it is NOT sunny
6. it is below 70° F
7. it is overcast
8. it is raining/snowing
9. a "fast" weather front is moving into our area
10. my allergies are acting up
11. I take medicines that don't "jive" with MG (such as -- almost any antibiotic for an infection)

There are probably OTHER triggers that I can't remember right now -- I'm in the middle of brain fog -- arrrrrgghhhhh.

I can't figure out if my body produces antibodies THAT quickly OR if they are just "laying in wait" -- and go ON attack whenever they feel threatened by one of the above mentioned changes.