I really like your chart. I also keep a daily pain journal but I have been on MTX from the point that I was at 20 mg and I have not experienced the dramatic swings in pain other than a few that were caused by specific actions like overusing an jig, reciprocating and circular saws over a short time period which caused my shoulder to scream, but only to a pain level of 4 and which disappeared after 3 days of Tylenol and no increase in Prednisone. I inject my MTX; wonder if others do. I am at 4 mgs but my body seems to be telling me not to push lower and to stay at this level a bit longer. My journey is only 9 months long so I shouldn't complain.