Hi - did they ever say what the pain in the right side was? E.g. for example, did the drugs effect the organs or was it muscular or nerve pain unrelated to the organs. Curious because I also get some pain in my right side and I know that methotrexate toxicity caused inflammation in pancreas and also possibly the spleen. The liver however seemed to have been unaffected. Now off the methotrexate and it looks like the right side pain has gone or at least calmed right down.