OT: Anxiety and yawns after making love? (serious)

Okay, this is going to sound way weird. Last night, my husband and I had some fun in bed. While he's wonderful and always makes sure I'm "happy" like he's "happy," sometimes I want more and he's done. So, if I'm not "happy" enough, I may play alone, either with him there or him going elsewhere in the house to do something, which I honestly don't mind. And it's weird, but every time I make myself happy, I yawn and yawn until I have a necksnapping, bonebreaking yawn that makes my tongue curl and spine twitch. If I don't have that really good yawn, I can't sleep. Well, last night, he went to check his email and I made myself happy once more before I decided to go to sleep. I did the good yawn and drifted off. I woke up about 30 mins later, feeling like something was really wrong somewhere, not with me. I felt lightheaded and anxious, kinda like I do when I start the search for the good yawn. Sure enough, I started yawning, but for the life of me, couldn't get that deep, deep yawn that would signal my body to sleep. It didn't help that my 2 yr old woke up and wanted me to lay with her. Laying on my back made me feel even more anxious. I rolled to my side, which was better, but I still ended up laying there crying because I couldn't get that anxious feeling to let me sleep. Finally, I got in a decent yawn, but nothing near what I needed and the anxious feeling subsided just enough to let me fall asleep. I'm awake now for the day and I've got that anxious feeling again and I'm yawning nonstop. Anyone ever had anything like this? Personally, I have no clue what will help me. I just feel very anxious but exhausted today. Tonya 405/379/254/180 (high/surgery/current/goal) 5'5"

i would seek professional help, never heard of anything like this.