Hi and welcome back!
Sorry you are still having so many issues. I just posted elsewhere, that folic acid is a good supplement to take when on methotrexate. And/or a good B complex vitamin. I recall that methotrexate can deplete folic acid in your body which then can contribute to fatigue caused by the medication.
I know a lot of people on methotrexate who haven't had any other issues with the med, other than being tired the day/day after they take it. Though I was told I wasn't allergic to it, I never felt that great on it. Aside from fatigue, I had constant chest/breathing issues. NOthing serious, but if I walked by someone who was smoking, I'd be hacking away for the next half hour. I had some issues as well, like dizziness, etc. but nothing serious. I didn't have HW to help with the tricks back then either! ***