When you say that "Bootstrapping a startup is stressful", are you only referring to the time before you raised the $2.5 million? How long was that?
EDIT: According to CrunchBase you raised $500K two months after your company was founded, and another $2 million 13 months later. I'm sure you just used the word without thinking much about it, but technically you bootstrapped for all of 8 weeks. :)