In my opinion, I don't think you have been poisoned. Sounds like you are extremely anemic related to this bleeding.
What exactly are the "stomach problems" you have had? Any history of peptic ulcers or gastritis?
What kind of "scope" did you have?
You can ask your physician to test you for heavy metal exposure/toxicity.
A metallic taste is associated with tumor in the brain. This is not necessarily so.
There are labs on-line that analyze hair samples to determine if you have been poisoned.
In any event, you require an immediate visit to an ER (not an appointment with a general physician) affiliated with a teaching hospital.
you should see a doctor and ask him why.
thanks for your suggestion :)
I suggest u see a doctor!