There is one BIG confusion I have with your question. You say third 40 day water fast. That literally means 40 days separated by a period of time(of eating). If you mean third 40 day back to back(no eating in between) that would actually be a 120 day fast. That is entering into or past Gandhi territory, and scary because it gave him problems when he went beyond the 40 day safe length. I think he went 106 days max. If it was 3 separate 40 day fasts how many days, or months, or years where between the fasts? Time frame means everything.