What can be done??

I have a question that maybe can be answered here. My gma had to be put in a ltc facility about a year ago. She has always had mental issues (severe panic attacks, agorophobia, "imaginary" symptoms, etc.) and once her husband died she basically laid down and didn't get out of bed. This caused her muscles to atrophy, etc. and now she really can't get up out of bed. She had a "helper" but the helper ended up stealing from her, threatening her , slapping her, etc.
so off to LTC she went. (no one else in the family could physically or emotionally take care of her, she is about 170 lbs. of dead weight. She did not even attempt to get up, walk around, leave the house, or even watch TV She also had a habit of calling 911 sometimes several times a night for things like turning down the a/c, help to go to the bathroom , etc.)

Since being in the facility she still refuses to get out of bed and is having panic attacks. She was on valium for 35 years (!!) but had to be taken off of it cold turkey because it was damaging her intestines.

The nurses have suggested she listen to relaxing music, etc. but she just doesn't seem interested. I don't think the ltc facility is necessarily a bad one. I do think she is severely depressed, has OCD, and horrible panic attacks. She has been having these attacks for probably 60 years. It is just so sad. Are mental issues so severe common in ltc, or is it mostly your "run of the mill" depression and dementia ??

She is still very sharp and very kind (not combative at all, if anytying she is passive) but the anxiety is just like something I have never seen.