Sure enough, the two months I've been on levothyroxine, I have had a period each month. Other hypo symptoms include being cold intolerant, dry
/nails, constipation, weight gain. Also, as you may know, having one AI disorder may be a precursor to more, so that you have fibro and Reynauld's, it may well be that you have an AI thyroid issue. If it were me, I would definitely get some additional testing done, a full thyroid panel. Hope this is helpful. Good luck to you.