Two of my sons have disease we are not able to diagnose. They have pain attacks in feets and wrists. Pain during such attack is crippling them for time it lasts, usually 10-20 minutes in this time they are screaming in pain, are unable to walk, play. When it ends they are normal kids, like nothing have happened. There is no routine, sometimes it's 10 times a day, sometimes there is whole week without single incident (rare case). We spend shitload money and time trying to diagnose this. Been like 7 times at hospitals on different departments (neurology, rheumatology, allergology). Older son is 6 and I had maybe 50 nights of proper sleep since he was born. Still, I love them more then anything