POCD, I can't understand

I've been suffering from POCD already for 4 months. Iad fear, I had anxiety and differed tgoughts that changed each other durring this period.And...I can't understand what is going on now, and how it's related to OCD. There is few things: 1) I keep checking the age of any girl that I see on the street, social media, public place etc. to make sure she is not underage. 2) When I go to work on subway and see attractive young girl, even if she is 18 I'm afraid that she is not, because she looks young, but I paid attention, and I start staring to make sure that she is not underage and If she is that I'm not attracted. 3) When I see adult womans age 27-30 I have strange feeling of anxiety and that I'm not attracted to them anymore like before. I look at their body parts, scan my body for any good or bad signs, and feel that level of arousal is lower. Main trigger in this suation is old adult look and body. For some reason I have strange thought in my head, like what if they will look too old for me and it means I'm pedophile. MAIN thing, it feels like perception of object of attraction is distorted. I work with my therapist and feel better but I can't solve this particular moment and connect it with OCD, I can't even explain it.