Since 2014/2015 I have been experiencing something really weird happening to my body. Before, it would happen during day and night but now it's only happening during night time cause I'm tired. It's so difficult to explain it but I'm so scared cause I dont know whats happening to my body. I'm only 17 and I never had any problems like that before. So what happens is that when my body or brain knows that I'm tired or when I go to bed and fall asleep, immediately as i fall asleep I wake up again to a feeling of my brain being frozen, biting my tongue, not being able to speak at all, losing my breath and my hands squeezing whatever is near. It's scaring me so much to the point I've cried about it cause I feel so strange. I don't know if it could be related to anxiety but I do know that at the time when I started to get them I was very busy with school and I would stay up late to finish projects and stuff. It did stress me out a lot but I dont know if it could be related to that. I just wanna know if anyone knows anything about this or similar things I guess. I've been searching everywhere but I have not been able to find anything. Please help me!!!!!!!!!!!!!!