so I have done some online research and it says its normal for this age to have a sleep regression. anyone else deal with this?

my 2 yr old has all of a sudden decided he does not want to go to bed at his usual time(7pm). last night he wouldn't even go in his room without throwing one of the worst fits I've ever seen from him!!! I usually will let him have a half hr of quiet play when he's not ready at bed time but last night he just keep screaming/crying. I ended up rocking him to sleep. Because my husband needed to sleep b4 work. it was 11pn b4 my son finally fell asleep! and he was back up at 4am!! once my husband left for work at 5am I had to rock him to sleep agin because he wouldn't go in his room! he drifted of in about a half hr but woke up for the day at his usual 630-7am! I am exhausted! and yes I realize its a bit odd for a kid to sleep almost 12hrs a night but he set his own bed time. and was sleeping great! we also used to get a 1-2yr nap from 12-2ish but he has been refusing that for a couple weeks he usually just played quietly or snuggles with me for an hr those days.

I have no problem if I need to be a lil flexible with bed time but when he freaks out about his room I'm concerned. he was acting terrified, not just "I don't wana sleep" but scared!

am I alone?

any suggestions?????