yeah, I agree, I don't know that it would necessarily aggravate seasonal mood swings, although who knows. I know some birth controls gave me gas (burping so hard that my throat would actually hurt from it), and when I talked to my doc about it, they said they had never heard of that reaction before and it must have been a change in my diet. (During this last pill, I noticed that the gas would be worst if I was starving, then if I had just finished eating, then I might feel excessively bloated and uncomfortable, and the burping would alleviate my stomach gas, though only partway, but it would hurt my throat while it was at it.)
I think I found them wrong for sure though, this last pill I was on, I had the worst burping ever, and I switched to Mirena, and the first week after, i had some burping, but none hard enough to actually hurt my throat, and my gas has settled down a lot now.