psoriatic arthritis
"I'm curious can methotrexate cause weight gain I rarely eat anymore except for the three days leading up to my next dose I'm fatigued, headaches, weak food causes acid so I must be very careful that I eat bland foods with little fat and since I've only been on it for 5 weeks I'm in the MORE PAIN part of getting used to the meds part of all of this.  But how could I possibly feel like I'm gaining weight when I eat next to nothing 4 out of 7 days and club crackers as my only snack"