Funny thing is they never are. A dr will just dismiss it. Mine tried to tell me it was just hormonal, pfft what a joke. I found a new dr who would give me a referral for the reversal, even my very first cycle after the op was normal & none of the bad side effects have happened since. When I would get AF I would be in bed it was so agonising.
It's hard to believe that clipping/tying or altering your tubes in anyway would be so devastating.