Dear Brother, Sorry to know the situvation you went through. Also its nice to see you are relived from pain with Blessings.
Let me clarify you that what AOL and Isha technics are, both are from Patanjali Yoga Sutra. These are technics are to balance the Ida and Pingala and awaken the Shakthi within.
Basically what is more required is Guru Bhakthi and belif in Guru (Any Guru whom one belive in, as Guru is a tatwa, not physical which will change later on).
When we practice certain Kriya and attend certain deeksha session, there are many things that happens very very suttle which modern medicine or gadgets cannot capture.
Basically, all the inner stored garbage are coming up to surface which takes form of physical body and get relived. If Gurus grace and belif is high all these goes without much issues else we go through a lot of metal torture.