It gave me breathing problems. I ended up with something called ground glass opacity in my lungs. My blood oxygen levels went down and I had supplemental oxygen at home for a few weeks.
After stopping the methotrexate my lungs are now clear.

Hi @elizabethjoan, You will notice that we moved your post to an existing discussion on the same topic here so that you can connect with other members with experience using methotrexate:

-- PMR and Methotrexate:
https://connect.mayoclinic.org/discussion/pmr-and-methotrexate/
@queenie2030, @klpintx, @peach414144, @jcaffrey47 and others may be able to share their experience with methotrexate and PMR.