Hi there is a family history of underactove thyroid and autoimmune disease in my family. I have a lot of symptoms that match but my thyroid test was normal but my blood viscosity is not, am no being tested for arthritis or lupus but do either of these affect tiredness, memory, urination, digestion or your sex drive please?  I am 33years old, 5ft 6inches and have recently increased my weight dramatically to 14 stone for no reason.
Good evening. All these symptoms are very general and can be seen with a lot of conditions. Lupus is an autoimmune disease which can affect multiple organs, and it can affect your memory. It can also cause fatigue and bowel disturbances. Your sex Chat Doctor.  But if your lupus tests are also negative, I had suggested you follow up with a rheumatologist. All these conditions are very common in Fibromyalgia as well. Hope the information was useful