B.D.
Your baby is clingy because he needs you. Some kids are more "high needs" than others. My oldest was literally attached at the hip 24/7 until he turned two. It was hard at the time, but now 5 years later, I miss those days. I highly recommend The Fussy Baby Book by Dr William Sears. It really helped me understand my son, and gave me great ideas for ways to cope. I also recommend getting a good baby sling or carrier. Your son might enjoy riding on your hip, and it would certainly give your back a break. Please please don't ignore his cries. The latest information out there has shown CIO can cause brain damage. Take a breath, see if family or friends can help, and remember this will pass more quickly than you think. I wish you all the best!
B.