Is it normal that i need to feel "even?"

When I was younger, I often did a few weird things. I would feel normal throughout the day, but then all of a sudden I would get this weird urge to feel "even." For example, if I would ride along with my mom in the car and we hit a bump, the bump would resonate per say with one of my legs in a specific spot, and I would try to tighten the muscles on the other leg in the same spot to recreate the feeling I got when we kit the bump. Sometimes it would take me forever to find the spot, but then by that point I had already gripped so many other muscles that I would have to grip the first leg to match the other, and then I would have to do the other leg again because then it wouldn't be even...again. There was a phase where if I bumped into something, I would go back to bump it again, not necessarily as hard but it had to be in the exact place. Other stuff like cracking knuckles and toes on both hands/feet is normal I think. I also had a weird twitch that would randomly happen, all of a sudden I would get this urge to basically tighten my kegel muscles, my abs, and my arms would shake and hands would twitch really fast (no, this is not an orgasmic feeling). I noticed a similar behavior in my older brother during his middle school and high school years, and every once in a while he does it if he's stressed I think (he would vigorously shake his hands behind his head). The thing with this twitch is that I definitely have the ability to stop myself from doing it, but I feel so weird about it.

I haven't really consciously thought about this stuff in years, but today I was looking around youtube and came across a video on a girl with tourettes and how she deals with it. All of a sudden I remembered all of my weird kind of things I used to do compulsively, and now I'm hypersensitive towards almost all touch. While typing this, I've had to rub parts of my palms on the keyboard because once in a while my other palm will touch the keyboard accidentally and you know the rest of the story. I keep thinking about the twitch, also. I've realized with the twitch that if I don't consciously think about it, I have no sort of urge to do it.

This kind of thing bothers me because I have trust issues with myself. My big issue is knowing whether or not my intentions are true. I literally can never trust myself. For example, if I do something nice for someone, another part of me "asks," "Did you only do that for your own personal gain in the future? Or did you do that because you just wanted to be nice?" The same concept applies here; am I getting these habits back because I watched tourettes videos? Are these even considered "tics?" Am I making a big deal out of nothing?
I'm really sorry this is so long. I would love it if anyone could help/relate.

:)