Everyonr is different, but I have been able to burp with all 3 nissens. I couldn't vomit with the first 2 and so far I have been lucky and haven't tried with my 3rd.I have gotten great relief with them and for the most part either stopped meds or cut way back. Sometimes you may get the wrap irritated by eating something that doesn't agree with you and may need some type of heart burn meds for it.
As far as exercise, once everything is healed and you get past your weight restrictions there isn't any problem exercising.
Nissen 6/06 and 5/09
#3 soon I hope