evaluating/analyzing my options

How do you deal/accept evaluting your life choices??
Lately I've been re-evaluting my life- relationships with friends and my career choice mainly. I've been dealing with emotional rollar coasters for the past year or so and I'm begining to analyze whether the atmosphere (and people) I surround myself with is adding to my anxiety or help it. I'm a nurse, I like my job, or I at least thought I did, and for the past few months or so I think my job is physically and emotionally draining me. It's gotten to the point I'm starting to think I didn't make the right career choice- I love being a nurse, and I don't want to end up hating going to work (it's happening at times now, and I can't stand that I am thinking that.)
I'm also questioning my friendships. I am currently having a difficult time with a good friend, and have lost touch with her and don't know why or how it happened. and I am having a very difficult time dealing/accepting that my friend hurt my feelings by pushing me away suddenly.
I have talked to my therapist about all this. and I love to analyze situations so I've been like obessing over this for awhile. I just feel so emotionally drained.

I've talked to my husband also about all this. He listens to me, not sure if he understands exactly. I know he doesn't want me to make some drastic career change and like quit my job or something. I am not planning on doing that, but I feel like I obsess about seeing what 'career' options are out there. I check job sites very frequently, which is a double edge sword because I want to keep my options open, but it also makes me more anxious.