My mom has become aggressive towards others in her adult day care group.

My mom attends an Adult Day care 3 times a week, which gives my dad a break. About two weeks ago, she started pulling other patients/clients by the arm (very insistently) to go 'somewhere' with her, or to stay by her side or I don't know what?? The staff there are wonderful people and they told me that sometimes they notice a change in behavior in some clients during 'the change of the moon' or the weather but it usually settles. My mom, however, hasn't settled. They are reccomending going to her doctor to perhaps look into anti-anxiety medication. Should I look into this? She already takes a bunch of pills during the day. I'd hate for her not to be allowed back, but I understand. I'm afraid if she keeps this up, she herself may be hit by a frustrated client!