the best suggestion I can give you is to get a second opinion.  if your RA is suppressed, you shouldn't have symptoms (fever is one of the symptoms of active RA). However, what concerns me more is your rheumatologist's dismissive attitude towards this.  If you're spending this much time in bed or feeling unwell to the point where it interferes with your ability to live your life, it is something that should be investigated, not just shrugged off as a hormonal thing. I would recommend that you make an appointment for a physical with your primary care physician - tell them about your symptoms and they will run appropriate tests and depending on the results of those, refer you to other doctors. At this time, you may want to ask for a referral to another rheumatologist for a second opinion.

Good luck!.  Please let me know how it goes?