hey guys I'm 15 days post op and when I wake up I have this weird taste when I burp it almost tastes like blood and has a metal-like taste

Strange. Call your doctor.

I'm 12 days post OP and have the same thing, I called my Nurse and they said It's normal for the first few weeks and if I don't have pain or a fever it's probably nothing serious but they'll check in more when i have my 2 week check up... which is in 3 days. So i've done some reading and this is what I've read.

It could be:

Normal Change in Taste Following Surgery: Change in the taste, smell, or tolerance of food following bariatric surgery is a common phenomenon. In fact, one study has found that as many as 97% of patients experience at least one such change following these surgeries.

Ketosis: Some describe keto breath as having a metallic taste in their mouth and a smell that's sweet, fruity or similar to nail polish remover. This is caused by the chemicals your body creates during ketosis, which are released from the body by exhaling.

(Unlikely) Dysgeusia or Parageusia is associated with this condition where the taste buds are distorted. It is a serious condition because an aversion to many foods can lead to malnutrition after gastric bypass or sleeve surgery.

The only way to really know is to check in with your provider. All the best.

hey guys I'm 15 days post op and when I wake up I have this weird taste when I burp it almost tastes like blood and has a metal-like taste

I had to have my endoscopy thing just before my surgery because my insurance didn't deem it necessary. The anesthesiologist also had to intubate me. So I had a very rough bloody throat when i woke up.