Hi, I am only new on here, but was speaking with a friend who suggested the site because of how I was feeling. I have pernicious anaemia and psoriatic arthritis. I have also had a hip replacement two years ago. I have over the last 4 years gained weight unexplainably as my diet has not changed. My GP has ran tests for thyroid problems and diabetes as this runs in my family but I've been told that nothing has shown in my bloods. My friend told me that I show go back since I've been feeling tired, weight gain, irregular periods, low mood etc and have e blood tests TSH T4 T3 to see if anything shows up. Can anyone tell me if this would be linked with any of my symptoms?