Could Oxygen help CO poisoning ?

I was poisoned for approximately 4 weeks with 50ppm CO when my roof leaked and my HW heater fell through the floor slightly, leaving the exhaust pipe broken. I was hospitalized when I passed out and shattered my arm and leg in a fall. This happened 3/24/2010. I have severe symptoms of long-term CO poisoning, including racing heart, uneven heartbeat, sleeplessness, anxiety, shortness of breath, sleep apnea, cognitive impairment, aphasia, joint pain, dizziness/vertigo/balance problems, weakness, headaches, muscle spasms, numbness, and memory loss.

A few weeks ago I was not breathing well and had an oxygen tank that still had oxygen in it from after my pericardial tamponade window surgery (May/2010). (I think this was due to CO poisoning too). When I used the oxygen at 1.5 for a night, I actually fell asleep and woke refreshed for the fist time in over 5 months. My question is, would oxygen therapy help me even though it is five + months later?

Also, I need a doctor who is familiar with CO poisoning and does not fight me every step of the way. I live in Southern New Mexico--any suggestions?

I suspect Neurology is the appropriate doctor specialty, since the cardiologists in town do not seem to know anything about CO poisoning and heart problems. They do not seem to want to find out either. I am disgusted with them.