Are my symptoms neurological or pulmonary ?

One day in March I started having this uncomfortable feeling in my chest. This feeling gradually became worse and by the time the night came I was having problems breathing and severe pain in my chest. When I laid down I couldn't breath unless I laid on my left side.

I went to the emergency room the next morning because I had pain radiating down my left arm, nauseau and vomiting as well. When I got the the hospital my blood pressure and pulse were elevated 150/100 and 100+ bpm.

I'm only 28 so a heart attack was unlikely. An EKG was performed along with a chest x-ray and everything looked fine. They gave me shot of a pain killer and told me to follow-up with my primary care. A few days later the same thing happened again and this time I was admitted because my blood pressure was really high. They performed another chest xray, a thalium stress test, EKG and more and everything looked fine. They gave me a nitro patch and a shot of some morphine and told me I probably had gastroentritis.

Since then I have these episodes where I get really tired, I have pain that radiates through my arms. Sometimes it's burning sometimes it's stabbing. Sometimes I have a tingling sensation all over, muscle twitching, sometimes I have numbness in my hands. Very rarely I may have problems controling my hand or I may have a hard time writing.

Over the past few months I've been having problems with my right eye and then most recently pain in my legs.

I was diagnosed with Optic Neuritis and sent to a Neurologist.

I had a MRI of my Brain and everything looked normal. I had an evoked Potentials test and they said it was borderline that there was a small lag in response in my right eye compared to my left. I had a Nerve conduction velocities test on my right side and there was one nerve in my leg that didn't respond but other than that the neurologist said everything was fine and a EMG on my right arm and the neurologist said that was normal.

My blood work has come back normal except my ESR & CrP were elevated and also the doctor said I have blood alkalosis so she has referred me to a Pulmonologist.

She hasn't done a lumbar puncture. She said one is not needed because the MRI of my brain is fine.

I've had my primary care doctor refer me to the Mayo Clinic where I am on the waiting list at the moment.

My question is does this sound neurological or pulmonary? My neurologist is convinced that the neurological symptoms I'm having are a result of a non-neurological condition or she has even said that it may be that we are unable to find the cause. She has also told me that I definitely don't have MS and I definitely never will.

I'm hoping someone with a little more experience my be able to provide some guidance. Even though these episodes come and go and I feel much better when I'm not having them, I feel terrible when I do have them. During the episodes my fatigue causes me to sleep frequently which is hard because I have a 1 1/2 year old. The pain is no fun and at it's sometimes hard to work during the episodes because I have a hard time concentrating. Any help is greatly appreciated.

I forgot to mention that during these episodes I still have times where I will have extreme pressure in my chest with occassional shoting pain and I also find myself at times taking these extremely deep breaths almost like I'm gasping for air. When that happens I often have this really uncomfortable feeling in my chest.