Need Yoga Expert

I'm not an expert. I have taken beginner classes off and on for a couple of years. Yes, it's normal. The teachers will talk about the release of toxins, especially when doing twists and binds. Is this happening? I don't know. But, I will sometimes react as if it is! Be sure to drink plenty of water right after you completed your practice and throughout the day. That helps with physical reactions. The emotional ones needed to happen, so appreciate the release

As an aside, I'll usually get emotional when the poses are held for longer or when there are a lot of new students and the teacher takes their time getting everyone into the right position. So far, I've been able to hold it together until I get to the car!

I'm not an expert either, and I can't say much about the emotional side, as it has never happened to me. But you might have gotten nauseated because of nutrition. Besides being hydrated, I found that 2 hours before yoga eating a nice meal of carbs gives me just the right energy without weighing me down. This can be a bowl of oatmeal, or brown rice, etc.

An empty stomach can definitely make me very nauseous if i workout...esp first thing in the morning. Also a meal of just fruit or juice or just coffee or tea (all of which are acidic) can also turn the stomach very sour when exercising. I advise a little oatmeal or whole grain crackers as well as the hydration.

Emotions in the muscles are very very real. Think how when we are stressed out our shoulders get tense, or when there's too much areguing your back starts aching, or how we clench our jaws when we are tense or grind our teeth at night, etc. Even though yoga will help u loosen the muscles & the emotions, it's pretty normal to feel a lot of the same emotions as you are letting the muscles lengthen.

I've also noticed that i can be overly competitive in yoga classes. I don't even notice i'm doing it, but sometimes i realize that i'm stretching sooooo darned far that i can't really breath fully & comfortably...& yoga can become very tense. It's a delicate balance, but i would suggest erring on the side of making sure u feel your breath is free & loose & deemphasize maximum flexibility--u aren't joining the circus as a contortionist, so best to get all that amazing oxygen in ur body & u will build amazing strength & the flexibility will come in time, but it will be a result,but it should never be the goal.

Hugs & enjoy. Let the tears fall. There's no shame in emotions.

Which poses? Backbends perhaps?