13 month whines all day

It seems like my 13 month old whines all day. He doesn't seem to play well independently like my first did. He always wants me to either wold him or sit on the floor with him. It's getting exhausting. I didn't realize it was so bad until I was around another baby around his age that doesn't do this at all. It's like all day I just can't wait for him to go to sleep bc then it will be quit, then I feel like a terrible mom for thinking this way.  He was such a good baby when he was little so this is hard on me. 
Anyone else going thru this, of has gone thru it. Any tips!  Should I be worried?