We had a similar problem with our daughter throwing tantrums and hitting...not good times at all, LOL. We got past it though, thankfully. A girlfriend of mine recommended this parenting program, Http://cli.gs/parentingpotential It was a lifesaver for us. Check it out if you have behavioral problems with your child.

iam going through a tough time at the moment with my two and a half year old little girl she is havin terrible tantrums when she cant get her own way i try not use the word no to her but she is biting,pulling hair,headbutting the floor wont eat her tea from time to time she tells me she dont want it and chucks it on the floor when i put her in the bedroom to calm down some how she climing over the safety gate and comes down stairs i am at the end off my teather with her and would like some proffential advice i seriously think she has adhd and need to sort this out before she gets older and gets worse.

It is odd, but my son bites when he's really happy. I scream ouch when he does and I give him something to bite on like a pillow or something depending where we are. He has gotten better now and will grab things and bite them instead of me, but it is still odd. Hopefully he will grow out of it.