I have been on methotrexate for 10 years successfully with little or no side effects. Now, I lost a third of my hair and continue to lose it. Is it possible to start losing hair after being on the medication so long with no hair loss before? My doctor wants to change medications but i am reluctant since this has worked so well for me, especially after trying so many different meds when I first got diagnosed. I have also doubled up on folic acid but it's not working. Any ideas or solutions?