Anxiety, OCD, overthinking.. Or nothing?

Ever since I was in high school I would double.. Well okay more than double check what I did in class to make sure I had no homework. Throughout the day I would go through each class, even if it was a class we never have homework in, and say to myself "okay 1st period.. Just read that book, no homework, second period no homework, 3rd period math pages 1-3", etc. I would do it a few times throughout the day. Making a list didn't really help because I would just check the list over and over. Everywhere I've worked I've done the same thing at the end of the workday, when I got in my car I wouldn't leave sometimes until I confirmed in my head that I did things like, when I worked at a grocery store that I "checked all of my WIC checks, turned my light off, put my closed sign out, and clocked out" I had a problem with checking my WIC checks too, I'd go over them over and over. It would sometimes interfere with me helping a customer, I'd tell them just a minute and I'd check the checks for a minute feeling bad I left them waiting but wanting to make sure everything was correct even though I know it was. I'd also check them a ton before I went on breaks and lunches. When I worked at a salon I'd get into my car and make sure I put my number of cards I gave out on the back board, that I balanced the till, put all the slips in the envelope, filled out this and that and locked the door." One time I even went back inside to check I had done all those things. Even now I just started a job at a bank and I really don't want to have to deal with it. It's more annoying than anything. I'll get into my car and sometimes, well usually if it's really bothering me, when I get home, I'll say to myself "okay I closed/locked my cubby, there was no money left in that drawer, nothing in that drawer, I clocked out, and I restarted the computer" Sometimes I'll get into.. Not even finish the little list and I'll restart. I'd say "okay, so I closed my cubby.. Nothing in there -" and I'd feel the need to start over, and sometimes that can happen a few times. Sometimes I'll feel good about everything then go off to do something else but before I do it will start to bother me again. Sometimes when it's really bothering me I'll have to make myself go over it until I feel okay with it before I start a show or take a bite of food (that's only happens once). Now it's not like I can't completely stop. If I'm with someone or just.. I can tell myself to stop thinking about it and I will, and just go on with the rest of my day, it might bother me when I get home though. Also it seems if I think about it some and then just go home and watch YouTube, TV, hangout with friends or whatever, I'll realize later Oh it doesn't bother me at all anymore. I'm not thinking about it, and I won't again. Now one thing is it only happens and the end of the day, once I get off work, I get into the car/home and think about making sure I did all those things. Okay, well sometimes I'll recheck a check and make sure like "okay it was a check through my bank it's this much so I only needed one id, I got id, expiration date and checked the photo" and I'll check it a couple times but that's only happened a couple times and that really hasn't been bothering me. Last thing, it doesn't happen with anything else, I don't recheck a bunch that I closed the bag of chips or anything. I just thought.. Maybe it only happens when I'm trying to think of things that are important and can have "consequences", at least to me if they happen. Sometimes when I take my birth control, I'll look at the day and the empty pill tab and say the day to confirm I did it and for the correct day like "Thursday Thursday Thursday, Thursday Thursday Thursday." or I'll check that I set my alarm for the next morning and then I'll lock my phone but then I'll unlock it again to check again.

I just finally wanted some answers, or thoughts as to what this might be considered, or what I can do to help it. Like I said it doesn't debilitate me all day or anything extreme, it's just annoying to feel the need to go over things when I know everything is fine.
I'm so sorry for the long read and I know I wrote the word "sometimes" a million times. But any thoughts are appreciated.

Thank you!!

Well, I don't think it's nothing. It's something that you are aware of. I do similar things to what you have written above and for me, it is anxiety related. I mean, it's understandable that you check that you have taken your birth control as that is important, right. You might find physically writing down somewhere that you have taken your pill, maybe in a diary/journal, then you know you did it. Please see your doctor if you feel this is starting to control your life.

Here is a link to a 'YBOCS' checklist (Yale-Brown Obsessive Compulsive Scale). It is a pretty good indicator of OCD.

https://www.google.ca/url?sa=t&sourc...drIar8AuE2vDIg