Separation Anxiety..Help

     So, I am 5 months into this parenting thing and I wonder when is it okay to do things for myself or on my own without my baby? I have gone out and had dinner, shopped at the mall once, and had a haircut but I always feel so guilty! Pre-Royce I did everything I ever wanted when I wanted and not that I am missing that but my free spirit hasn't changed. I feel a very strong pull to just stay home and stick with the exact same routine every single evening..well it's Friday today. While I would love to go out with a girlfriend for martini's at Paul Martins I take one look at my baby boy,throw my sweats on and hunker down with him. Also, how much time out of the house with him is too much? I am so scared to over-do anything with him that we usually just hang out at home or in our neighborhood. I am probably being way too over the top sensitive but I do want some suggestions about how to get over my fear of taking him out. And I also need suggestions on how to get over that motherly separation anxiety. I want a strong bond with him but I also need my space every now and then.