Deviation for Diabetes?

[stepma]

Our C.S. is in Missouri and we are pro se and I just read that a deviation is allowed if parent paying support has significant extraordinary medical expenses. Unreimbursed medical expenses that exceed $250.00 per family member per year are deemed extraordinary medical expenses.  My DH spends at least $1000 a year for supplies and minimal doctors expenses, we don't have insurance. Has anybody ever done this? and if so how should I go about it from a pro se standpoint. we are currently going through a modification, and have just received an interrogatory.