Brief Answer:
At least PFT is normal
Detailed Answer:
Hi again,
I think if your PFT is normal, then you are able to expand your lungs to the full (maybe with extra effort). With breathing exercises, etc you will be able to develop your muscular strength back to normal.
Please get the blood gas results (even if verbally) and let me know.
Regarding neurological exam, did the
neurologist check the strengths in individual muscles of legs and arms? For example bicep muscle strength test, tricep muscle strength test, etc. If these tests were within normal limits, then the weakness may be mild.
Though your symptoms are not going with the tests.
For diaphragmatic weakness, there are other tests like chest X-ray or
CT scan of chest that may check for diaphragmatic
paralysis. Other tests are there but are not done in routine. These tests include
phrenic nerve stimulation/diaphragm
electromyography, maximum inspiratory and expiratory pressures (MIP and MEP) sustained during one second against near complete occlusion and Sniff nasal inspiratory pressure (SNIP).
I think you may recover, since your tests are coming back normal. It means that the muscles got affected but not to the extent of causing lot of damage to function. I am not sure if the ER doctors will help you. Another visit to the neurologist may be of more help, if you can convince him that your muscles are weak and that he tests you further for it.
Dr Vaishalee