Re: enough biting help please!
Oh, boy, I have been there....in fact, we only recently emerged from that dark place, and it wasn't because of anything we did. The craziness just passed. Sometimes it's like that.
I agree that teeth can play a major role in what you described -- I would also consider having his ears checked, given the recent arrival of car sickness, as infected ears can also lead to a great deal of what you have described.
Most of all, however, I just send you mama because it is really hard to remember, when you have high hopes for raising a compassionate and sensitive human being, that your toddler is ever going to display anything approximating those things. I try to remind myself that the best way to learn compassion and sensitivity is to be familiar -- to really understand -- the breadth of human emotions. And boy, oh boy, are toddlers ever experiencing the whole range! When we let them have their feelings, but make clear (even when they can't remember it ten seconds later) what is acceptable behavior, I believe we set the stage for life long compassion and emotional well being. Hang in there...
Mama to Lorenzo, born 4/25/2007. NICU graduate, Gastro-Esohapgeal Reflux, Obstructive Sleep Apnea, Sensory Processing Disorder...alive and thriving thanks to breastfeeding and co-sleeping.
Those who say it can't be done should not interrupt the person doing it.