I'm late 20's I've always been really active and social. In my friendship group we range from 23-28 I've never noticed an age difference before until this last year. I've felt a massive shift in my mindset and body. I'm a lot more tired. I don't enjoy socialising as much. I still exercise and eat the same as before but I'm noticing my body changing slightly (cellulite, wrinkles, little aches and pains). After work I used to want to see friends and would look forward to nights out now I just want to hit the gym to unwind then get my PJ's on and watch TV. I guess I thought I'd be 21 forever.