I went to the store on Sunday to buy running sneakers and I'm the type of person that has OCD with this type of stuff. My regular shoe size is like 10 but the size 10 for the particular sneaker I wanted was kinda tight so I tried 10.5 and it was more comfortable. THen I tried the sneakers back and forth and then 10 didn't feel so bad after that but 10.5 was still more comfortable, lol, so I bought 10.5 and now 2 days later I realized that it's too loose. YO, WTF is wrong with me? Is this OCD???? I used to do sh*t like this when I was like in high school, like retake steps, recheck doorknobs, etc... I stopped doing that stuff though. Now I'm going to return the sneakers tomorrow. I feel nervous just typing this and my heart is beating faster.