Eggy/sulfur burps

Hi there. This has been troubling me for a long time. Ever since I was a kid, I have gotten these foul-smelling burps that taste like cherrios and smell like eggs (according to those around me).

I seem to have narrowed it down. When I eat something in excess - for example, popcorn or nuts, it'll flare up. Sometimes when I start a new medication, it'll flare up.

I don't know what I can take to get rid of it at the moment or how to get rid of it completely.

Please help.

[mikep1701]

another symptom of note is sometimes, not always but sometimes, I'll hive high-pitched burps as if I'm expelling something lighter than air or whatever other gasses are normally produced by the digestion process. You know how if you inhale helium, your voice will be much higher than normal? yeah, like that.