Hi Betting,
I had pain and swelling on my right side, too, and there's no question in mind that it was my liver because I could feel it, had a yellow tinge to my eyes, and spontaenous brusing. I think the pancreas is also in the same area, but in any case, it would probably be best to stop drinking for a while to see what happens or you find out what the true culprit is.
I've been sober now for 4 months and all the above symptoms have thankfully disappeared, but nonetheless, I'm sure my organs have been permanently compromised by alcohol. Milk thistle (silymarin) is great for the liver as well as water with lemon which cleanses and stimulates both the liver and kidneys as well as many other wonderful things.
Lemon Water - Alkalising Superstar
Welcome, and I hope everything turns out OK.
Sheri