Hi, have you looked into Dermatomyositis? If the skin issue is connected to the muscle issues, then you should check that out. But please don't be scared when you google this because the info online is much more scary than for about 80% of people that have this. I have probably had this for about 20 years and have many "small" symptoms come and go but nothing serious. If the skin issues are not connected to the nerve/muscle issues then this could be many things. Like Sjögrens in the nerve system. I hope you get a great doctor to help you figure this out.