running-- DIZZY!

are youy hydrasted enough?

I just read a post in the last few days about the issue with the ears getting "clogged". It's actually something that happens when your ear canals swell from the blood flow to your head. There isn't much you can do about it unfortunately. I tend to get my ears clogged when I do more intense cardio, but not as severe as your issue when you have to stop. It does recommend less intensity so your ear canals don't swell up as much, so try running at a slower pace. It might seem REALLY slow at first, but it's better to build up to higher speeds without your ears bothering you.

Here's the post I mentioned:
http://www.myfitnesspal.com/topics/show/151000-jogging-ears-plugged?hl=ears#posts-2041447

Based on your reported symptoms I believe you need to begin focusing a lot more on your breathing. It seems like you're not getting enough oxygen as your using the treadmill. Perhaps you are holding your breath at certain times, or breathing much too frequently. You have to keep your breaths even and long enough to draw in enough oxygen.

Pay close attention to your breaths next time you use the treadmill.

If it's not your breathing it may be your posture. If you tend to hold on to the handles, don't . You need to keep a proper walking/running posture when on a treadmill. Don't lean forward to hold on.

Also, make sure to keep your hair up as though you were running outside.

I hope this helps you hun.