חשיבות בדיקות מעקב

Hi,

I'm not sure if it's a fair question but I'll be glad to have your opinion and maybe hear from others!

I've been having symptoms of joint disease for about 8 months now.
I've done some tests and the Drs aren't sure yet about what I have (suspect either Lupus or CTD).
I'm being treated with Plaquenil and MTX

for the MTX - I take 6 pills once a week (15mg).

I've been told that it's important to keep getting tested every month.

but since I don't see any change or improvement in my symptoms, my question is , is it really needed to keep being tested every month? if not, how often is it really required for being test?

I'm living abroad so it's not very convenient for me to have those periodically tests.

Thanks in advance for your answer!