Breathing Problem / Lightheaded After Breathing Exercises

[heyitsme]

Been having some lightheadedness for the past 6 months (not dizziness, no spinning etc.) Have had numerous tests including glucose, blood, lung xray, allergist, head mri, ekg, echocardio, gastro, and sleep study. Nothing too obvious found, except some apnea (waiting on more info) and some acid reflux. Recently I went to a therapist for anxiety and he walked me through some breathing exercises which calmed me down, but i noticed I felt more lightheaded right after. Also for the rest of the day I felt like my breathing was off like I wasnt getting enough oxygen.

I went to a walk in clinic just to make sure it wasnt something serious and they did bp, pulse ox, and ekg which were all normal. I am wondering if I just hyperventilated myself (can that last for many hours after?) or if this might be a clue to my lightheadedness throughout the day.

Thanx

[National Jewish]

Most lightheadedness is caused by

[dmg]

One of the things doctors over look, is pulmonary hypertension. Rare, but some people have it.  I have normal pulse ox readings too, I have asthma and sinus problems.  My dad had emphezema and had normal pulse ox readings too. So after looking this up, I am wondering if he had pulmonary hypertension.  This is one thing we are looking into for me.  But they also are pushing for me to do a sleep test for apnea.  I am demanding other things be checked out before that.  I too get so out of breath walking up stairs and up grade.  But there are so many things to cause these types of symptoms.  But keep pushing the doctor to check things out.

[heyitsme]

I should mention that I also have a lot of burping all the time too... not sure if this is related. Gastro thinks its reflux, but to me it seems like something else.