Mine shows its ugly head more in hot weather also.I have notice more pain some days during the month than others. Maybe I just move around more,I will not take meds. for this because it affects kidneys, my dad was on dyallise(can not spell )I am very careful with any med. that side effects are kidney related. Started taking L- carnitine 30 days ago, maybe showing a little sign of improvement. Hope you feel better soon.