At the risk of stating the obvious, my first suggestion would be to go and have a full physical/blood work-up etc at your PCP, if it's been at least 6 months to a year since you've done that.
That being said, stress from what you've been dealing with can truly take a very severe physical toll on the body. About 5 or 6 months after my mom passed away back in 1999, I started losing my hair. Like, not a little, but GOBS. I'll bet I lost at least 1/3 to 1/2 of it when all was said and done.
But I think your plan to start juicing again is a really good one! I'll bet your body will love you for giving it a high dose of nutrients during a stressful time.