Sounds to me like your mom need to see her Pdoc and her therapist .. excessive worry can be treated thru meds and therapy ..

I can understand how all of this is upsetting to you ,, seeing your mom go downhill and no longer enjoying life ... She definatly should be seen by her doctor ,, If she is Bipolar.... typically meds just stop working after a while and they need to be changed .. thats pretty normal .

Shes lucky to have you as a daughter .. willing to help her get the treatment she needs ((( HUGS )))