<human>: I'm in a relationship and absolutely head over heels for this man. We have been seeing each other over a year and at this point it's safe to say if he asked me to marry him, I'd say yes in a heartbeat. 

The problem is, I am currently suffering from some very real separation anxiety and just general anxiety and depression. When we are not together, I feel like the walls are closing in on me, and that he is going to lie or cheat or leave me. Just hurt me in some way. It is completely unjust, as he has never given me a reason to feel as though I can't trust him, or that he doesn't love me wholly and unconditionally. 

I am looking for advice in this matter. I am in therapy and adore my therapist, and I actually just started an anti-depressant a few days ago. A very small dose. I had great results with this medication a few years back during a tough time. 

Can anyone relate to this debilitating fear and uneasiness? It's almost unbearable at times and he is going out of state for the holidays to be with his family and I am so afraid. 

I know how needy this seems. I know it's not healthy. I just need some comforting words or shared similar experiences. Maybe some advice. I feel like I'm drowning sometimes and I don't feel like myself.

Condense the text into a few key points
<bot>: I am having trouble with my anxiety, especially when away from my SO. Can anyone relate, share a story, or offer advice/inspirational words?