Could this be SPD?!

My daughter is 15 years old. As an infant she never slept and had to be held constantly.

Shes always had problems with food- she has never eaten meat, vegetables, or really anything but macaroni and cheese, potatoes, ice cream, pizza and pasta. She could go weeks without eating or be starving all the time. She still has an extremely limited amount of foods she eats and what she does eat has to be excessively covered in cheese salt or butter. She has times when she is so thirsty she drinks herself sick.

She constantly craves motion and will often just run back and forth until she cannot run any more. She adores swings and trampolines and could go for hours if need be. She rocks a lot when stressed or bored and when she panics she hand-flaps. She also has this weird thing where she has always (since she was a tiny little thing) stuck her finger into her bellybutton and pushed the nail deep in and wiggled it around. To this day she cant sleep without doing it. She feels the need to stretch out her legs arms neck and back out as far as they go , push her index and pinky out and squeeze her eyes shut. Sometimes until the point where it is hurting her. She says she can keep herself from doing it if she wants, but it feels good and calms her down. (It is mostly a boredom/stress thing) She has to have something in her mouth constantly or she complains of nausea she always has gum in her mouth unless eating or sleeping. she is fairly clumsy and loves to roughhouse.

She has problems with touching things as well . Certain fabrics hurt her and she says she feels like being sick and that she gets covered with goosebumps and shivers whenever she touches them . One of her uniform shirts this year is that type of fabric and she pointblank wont wear it. She used to have to have tags cut out of everything and have socks inside out, although she has since grown out of it. Her problems are especially bad in the winter or when drying off after being wet. She says that sometimes everything hurts to touch and she feels miserable. In the summer her problems are almost nonexistent. After washing her hands she will keep them balled up in fists until they feel better.

She smells everything when first encountering it . She loves strong smells like sharpies gasoline and whiteout. Although she is good at identifying people and things by smell.

She was put on zoloft for anxiety in third grade and was taken off of it later that year and has been put back on it for the past year. She always needs help from me to recover from panic attacks or worries. She cannot go to sleep without Benadryl, not because of sleeping problems but because she cant calm her mind down enough to lie down and sleep without worry.

Are these signs of SPD or are these just normal traits all children live with? She is my only child and I don't know. She is a pretty healthy teenager now with lots of friends. as she gets older she seems to be able to cope with these oddnesses. I still cant help wondering if all these Things are normal and if she needs help or not. Does she need help? I am so confused.

Sorry it is so long! Please respond!