Please post your two cents on Herceptin "side effects" real or perceived!

[Ronnie]

Good Morning, 11 years ago my mom had a lumpectomy; we were told it was cancer in situ. She had radiation for less than a year followed by five years of tamoxifen all without circumstance. At 83 mammography found another lump removed by lumpectomy and identified as Her2 +. She’s been receiving Herceptin every three weeks since July. The most profound side effect is forgetfulness and confusion- which seems to be getting worse with each additional treatment. She is a traveling dog groomer and recently she got lost in route to a customer's home she's visited every three weeks for years. She doesn’t remember phone numbers and forgets the day of the week she’s in. Needless to say, this is causing her great concern- frustration and fear. She sees her IM and hematologist this Friday. Curious of anyone can offer suggestions to support her through this specific side effect. In gratitude; -R