Emotions are intrinsically good and bad

[Edwardo Piet]

The types of emotions I am talking about are the biochemical ones.  For example, if you felt sexually aroused, then that is a positive emotion.

That's definitely not necessarily positive. It's also a feeling but not an emotion.

  I have never had any other form of emotion in my life.  They simply do not exist for me.  There is no other real positive and negative quality in my life besides my positive and negative emotions.

I think 'feeling' is a better word if you're talking physical stuff. Sexual arousal, for example, is more than a biochemical feeling. It's physiological. It's also not really an emotion. It can cause emotions. It can cause an emotion like excitement. Or frustration (hence why it isn't necessarily positive). Or even anxiety (some porn addicts get off while shocking themselves with extreme porn and making themselves feel anxious for example . . . kind of like how someone enjoys scary movies or scary rollarcoasters).

I struggle to ever identify emotions but physical sensations and bodily urges are easy. Although I often mistake one for another I know at least I am feeling something comfortable or uncomfortable physically.