What are you hoping to achieve? If it's fat burn, back off. You're working too high on the intensity scale.
Not sure what your fitness is like, Jaiman, but you seem quite fresh to all this and your body takes time to adjust to conditioning, including cardiovascular and aerobic/anaerobic conditioning. I would suggest you're working too hard and getting into some hypoxic territory (low oxygen). Back off on the intensity and that should help you avoid the crappy feelings you're getting at present.
BD
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