Blood taste in your mouth, your heart as big as your whole upper body and bouncing in your throat and competing with emesis about who gets to go out first. You feel like your lugns have shrank to two raisins with no chance of getting any oxygen in when the giant heart and emesis are blocking the way. No oxygen, no muscle activity, only numbness. What a feeling of complete nausea.

I just had my first hill interval training in 15 years and felt like Seasick Sarah. I miss climbing.