overwhelmed

My one year old has always been pretty high maintenance and thrown tantrums more or less, but lately omg whole new level. He cries for me all the time and even says "momma momma momma" I'm a SAHM and hubby works A LOT. lately baby boy has been arching his back and falling backwards from standing up, hitting his head on carpet, tile, toys, cabinets. He does this when he gets upset and he gets upset at the drop of a hat, no patience at all. I can relate because I've always struggled with these things myself so I want to help him calm down I pretty much comfort him right now I mean he doesn't understand why he is so frustrated either and clearly doesn't like feeling that way. It's just a lot. I take him places but most the time he just wants to be held, he is extremely attached to me and has never been away from me for more than 3 hours. Is this normal? What can I do? I want to held build him up into a confident guy and hate to see him so upset. Any ideas?