Brown vomit ? Help plz.

The past few days I’ve thrown up in the morning it’s been a brown color. Tastes sour and horrible. I’ve thrown this up on an empty stomach and also just tonight after throwing up my lunch from like 1 pm. Its so potent my tastebuds are like numb. I can’t find anything online about this only about the coffee ground vomit. Which this is not.

Anyone know what this is?

I take b6 and unisom at night and I take zofran every couple days ( instead of each day) bc it dehydrates and backs me up so much. Antacids seem to do more when I take them and nothing digests at all, I just throw up 5 hours later w nothing digested.