Sorry about the continued weight loss. ..If it's any consolation, I think I'VE found your missing pounds, just can't seem to find a way to get them back to you.
About the Celexa...Both CJ and I were on it at first. We felt nauseated for a couple of days, it also caused temporary (couple of weeks?) sexual effects, mostly in the form of "retarded orgasm"...as in not quite being able to get there..very frustrating! But I'm fine now.
CJ had other side effects too. Trembling hands for one. He switched to another drug...Serzone which was a better match for him, although if I recall correctly, he was really tired the first while on it. (Could have been the depression too).
Now most SSRI's (that's your Paxil, Celexa, Prozac, etc) can decrease sex drive in about 70% of patients. No real change for me, CJ's drive is as low as ever as far as I can tell. Some can cause a bit of weight gain too...hey YOU need that!!!
As for a low dose of Celexa...I take 20 mg once a day, the max is 40.
Now...as for your recent encounter with H. Oh, J, I so feel for you. After bomb #1 my "recovery" from the kidney surgery was seriously compromised. Not only did I feel like I couldn't BE sick or take it easy, but the STRESS!!!! No wonder I, too, lost weight, drank too much.
I'm quite sure that the rapid return of my kidney stones, the massive hair loss were due to the stress of what CJ had done. I never mentioned it, and neither did he. But I certainly was never comforted about it either. Man he was just plain MEAN sometimes back then. I suppose he felt he had to harden his heart, or maybe my earlier behaviours had already done that. I'm sure the OW didn't help!
..If it's any consolation, I think I'VE found your missing pounds, just can't seem to find a way to get them back to you. 
