Are these tantrums normal?

My son is 22 months old, and while he's always had a temper, lately he is having temper tantrums, especially when we have to ask him to stop doing something he wants (ie. coming in from playing outside, when it's time to stop a game he likes etc...) His tantrums can go on for 5-10 minutes before he gets himself calmed down. He will throw himself to the floor, screaming/crying. If you try to pick him up he will lash out at us, hitting our face and tonight he pulled my hair. I will admit, as far as our personalities goes, both my husband and I have a temper (his is longer, mine is shorter) and I am quite impatient. Are these tantrums just a normal (unfortunate) combination of our personalities? Or do they bear watching? In every other sense, he's a great child, normally very happy, speaking well, ahead on physical milestones, and plays well (LOVES to play) with other children. The only other thing I can think of is recently, within the last month, his bedroom has been completely remodelled, and he has moved into a big bed. While he seemed to adjust perfectly to these changes, could these still be prompting the tantrums?

[Badenn3]

Oh- they have just begun! Yes- this is very normal. It is called the terrible 2's. They want to be independent, yet don't understand boundaries.
Yes- your children inherit some of your personality traits including your temperament. Your children also watch very closely how you and your husband interact, conversation, conflict, affection. They will mimic these behaviors.
So things you can do:
React in a calm manner- tell him it is not ok to act like this. Put him some where safe until he is done and just let him be. I usually put mine in there room and close the door.
When he is done go in hug him say you love him. By that time he has forgotten what he was throwing the fit about anyway.

Last- be consistent!!!!! You and your husband have to be on the same page and follow through or you are going to have problems.

[Encephalomalcia]

Make sure that he cannot hurt himself and let him throw his temper tantrum.  He gets frustrated and needs to let that frustration out.  He feels comfortable in his surrounds enough to let a temper tantrum go.  He is able to calm himself after 5 or 10 minutes (that is great).  A lot of children throw temper tantrums for a lot longer.  Temper tantrums are okay for this age.  Most likely nothing caused the temper tantrum and it is just a phrase (a normal part of development).