Medical reason for stifning of body/ mind and spasms during sleep, or relaxation?

Ok, im a really skinny 14 year old girl. this has been happening alot latley and im concerned that it is something bad. One night, i was lying in bed. it was the middle of the night, i cant remember if i was half asleep, or just sitting there, but i lost alot of my breath. its like i was too tired to breath. i had to take a deep breath for me to get air. and this is really weird, but i remeber laying in bed and my body got really tight, maybe not physically, but maybe mentally. i was kindof having like a body or mind spasm. i had to try really hard to get my mind or body out of that tight stage, and breath. It was really weird, i dont really know what it was. i cant really explain things well, and im hoping to find what it is. my eyes felt weird too. they were closed, but as if they were rolling back, but i dont think they really were, bc i would be unconsious. its kind of like i was laying there in a daze, and on a mind block, and not being able to think or anything. the other night, i was laying in bed, and i breathed in and then after that breath i just layed there and felt like i had to struggle to breath. like put an extra bolt of energy. idk if this has anything to do with this but, that same night, the lights were off, and my cell phone was glowing really bright and then it turned off. then i started seeing splotches or like cloudy things coming over my eyes, and they wouldnt go away. but i think thatwas just bc of te light. plz someone help me! im going to the doctor about it sometime, but i was just wondering about any suggestins! thank you!! FIVE STARS!