I could have easily passed out. It finally abated on it's own, but anxiety can be instinctual. You are unwell, you know you are unwell, you have not received relief or treatment, you worry...you pass out.

The esophagal bleeding can very well be the old problems you had with esophagas. I don't know your medical history, but I know bulemia can cause blood in vomit, due to constant irritation from vomiting.

Your fever can be a number of things,and antibiotics is a reasonable step. You may feel alot better soon with the antibiotics. You may have an infection, unresolved bacteria. Just keep an eye on it.

Relax as much as you can. there is definately something acute going on that needs to be resolved first. Then the COPD can be adressed, if that is even correct. From reading thread, there does not appear to be enough medical testing done to confirm diagnosis. What testing was done? Who diagnosed you?