My LO gets like this when she gets an ear infection! Well....she also gets really fussy during the day to though usually. I would go to the doctor to rule out any thing like an ear infection. When they lay down ear infections will get worse.
If this isn't the issue...lol! I know my LO went thru a couple sleep regressions. One of these did happen a couple months ago when she turned 2! Also tylenol makes my girls hyper and not sleep. (it did the same to me when I was little) I use motrin and it seems to calm them.
Never worry about looking like "that mom" if you have a good doctor they will appreciate you wanting to make sure your LO is healthy! I have been to a couple who were not like this, but found the one I love who puts my family happiness first and is more than happy to make sure they are healthy!
My LO also goes to bed at 8... both my kids do and they have NO issues. My older did quit napping just before she turned 2. She is now four and hasn't napped since. She was such a growly butt for three months!! Once she adapted she was great lol! My younger on the other hand HAS to have her nap lol! She has had a couple rough ones where she has to cry it out or will play for a while and then go down. She takes a nap around 4 after she wakes up and it is about 2.5 hours. Then she is up for 3 hours before bed. Some nights she goes right down. Others she up until 11 playing.
Tip that helped me for morning sickness citric acid!! OJ, oranges, real lemonade whatever citrus you can find!! Also the health food store had this stuff called morning sickness magic. I never had to actually take the pills...I could just open the jar and smell them!! I felt better everytime! GL!
Also we tried melatonin with the older one and it would help her get to sleep, but not to STAY asleep.