Not sure, ask your doctor but anti-depressants work on Clinical Depression. perhaps not situational. Don't know, ask. Talk therapy might be the thing.

When I was diagnosed with MS, neurologist let my GP know after he told me.
She called me to console, I cried and then apologized (women seems to do this behavior of apologizing). "You have a right to cry" she said, which made me cry harder. Kitty, you have a right to cry.