Hi , thank you for reaching out to the community here. I'm so sorry to read about this recent diagnosis and hospital stay. That must have been scary. I don't have personal experience with this (I am on methotrexate but have been fairly lucky with side effects), but we have heard from a few community members who have mentioned having trouble with methotrexate and their lungs. I hope they'll stop by to share with you, and we'll be sure to share a link to your post with anyone who may have relevant experience to share. Do you feel comfortable sharing more about what happened prior to and during your hospital stay? And how are you feeling now? I'm sure you're thoroughly worn out by this. Sending the gentlest of hugs! -Catherine, Community Moderator