supplements

Hi all,
I have severe pain in, hip, knee,leg and elbow. Wondering if this is due to all the chemos I have endured. Dx IDC 6/05 at age 46 (premenopausal), Stage 1 with 2 masses, both er-pr- and her2+++. Had 4 A/C treatments, 12 Taxol and herceptin to equal 1 year should end in Dec 06. Rads daily for 26 days. Had neuropathy with taxol and having weird sensations possibly from herceptin. A sortof rash that is very itchy on my wrists, one knee and behind the other knee. Onc wonders if it is from the herceptin.
I have just started taking calcuium supplement 2 x day to aid in reducing bone loss, multivitamin which onc states has enough magnesim in it. Have been taking CoQ10 after reading about it on this board and having a low muga score delaying my start on herceptin.
Onc also stated I should take MSM & Gulcosamine for the joint and leg pain. Wondering if this is ok to take and any suggestions as to what I should add? and how can I find out about a meditarean diet?
Thanks for the help