Im currently suffering form the "eggy burp syndrom" as we speak, and it isnt my first time. I can say I've had it less than 10 times, but certainly more in the last 3 months, twice in the last 3 weeks.
I used to think it was something I had eaten, or I ate too much... after reading much onthe forums about this, I relaize perhaps it IS stress. I am working long hours, most of the week (as Im not used to) so I am constantly tired, and I stress very easily in these times and dont always eat well. A week or so ago, I got very depressed and ate my heart out, ended up waking in the early morning with an attack of these (my symptoms usually are the burps, stomach cramps, and sometimes dirareah... I would be vomitting but I am lucky to pass gass, and I've learned the art of swallowing my burps until the attack has settled). I thought my attack was because I over-ate (and though that might be in part), I realize now it was most likely stress that whole day, and then the body relaxing as I slept, causing this attack to forma nd awaken me in the early mornings.
For relief, I've found after a few hours of letting one or two burps out, farting, using the bathroom often, and taking 1-2 TUMS tablets tends to help my situation, and from then on I just watch what I eat for the rest of the day (avoiding dairy and very acidic drinks such as orange juice).
I believe most of this is stress enduced, possibly having somethign to do with low iron also, but if anyone knows any more on this please feel free to let me know, considering I've never had an issue with my body so far, and I am only a teen still, so I doubt it could be something as serious as my gall bladder...
Thanks!