sleep regression??

Heather

Please help. I don't know if I'm battling sleep regression or something else. My LO is 3mnths old and has stared waking numerous times a night needing cuddled back to sleep. This can go on for hours as every time I try to set him down he wakens and cries. However as soon as I pick him up be that after 1minute or 5 he goes to sleep instantly in my arms?

Is this sleep regression or something else? Any advice would be great.