Any ideas?

Hello everyone!
 
Previously, when I grew hot peppers they first fruited as they would over and over again.  With this plant it started as those small orange peps.  I didn't feel heat, but my girlfriend spit it out immediately and went running in pain which lasted for an hour or so. Yes, I feel bad;/
 
A month later, it started to produce differently shaped fruit. 
 
Any ideas what this is? 
 
Thanks!