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Weird Lightheaded Spacey Feeling After Exercise
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Weird Lightheaded Spacey Feeling After Exercise

38 male, good weight, have been exercising for years.  Lately after exercising I get a lightheaded sensation.  I have had a history of PVCs and 2 years ago did a full cardio workup--stress test, echo, ECK, holter.  Everything came back normal.  I actually haven't had many PVCs lately....they come in waves but right now I'm in a "non PVC" period.  Anyway I talked to my cardiologist and he asked if I can finish my 60 min cardio days (bike, treadmill, etc), and I said yes.  Not a problem.  He tends to think nothing is wrong with my heart.  But why the hell am I getting lightheaded after working out?  It doesn't happen after every workout and it can happen even if I've been sitting around for hours, but I tend to notice it right after doing some activity after prolonged periods of sitting.  But I've never ever noticed this before a few weeks ago so why now?

Any clues?  Are there possibly some cardiac problems that could account for this, given my HR is normal, rhythmic, and I am able to do my 60 min cardio runs easily?  Could improper breathing cause this????
2 Comments Post a Comment
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Avatar_dr_f_tn
Hello and hope you are doing well.

Besides cardiac disorders, there could be other causes for your symptoms. The light headedness may happen if there is inadequate supply of oxygen to the brain. This can happen with cardiac disorders or lung disorders.  In cardiac disorders there is inadequate pumping  of blood and in lung disorders there is inadequate oxygenation. It could also be due peripheral arterial blood disorders. Symptoms are usually aggravated with exercise in cardiac disorders. Diabetes mellitus and hypertension can cause these symptoms. Again inadequate sleep, hypoglycemia, anemia and vitamin deficiencies can aggravate you symptoms of light headedness.  Discuss these options with your consulting doctor.


Hope this helped and do keep us posted.
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Avatar_m_tn
Hey man,  I have also been experiencing lightheadedness and brief blackouts, after exercise and as well as in the morning, as well as decreased energy.  I have done several tests like blood tests and sleep tests but there has been no proven evidence of anything.  Could be quite possibly be oxygen deficiency but I am not sure
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