Hi @Cyn, I have always been a leg cramp kind of gal but since Tamoxifen I've hit a new high in the leg cramp department also in the aches (aching left knee). For many years I've taken magnesium and now also take panadol osteo before I go to bed (even then there are some nights it just doesn't work). So have also started on Karma Rub - magnesium oil and my cramps seem to have settled down. The aching hasn't and my oncologist wants me to get it checked out but it only hurts early hours of the morning so it would seem to me to be more of a cartilage issue but will mention it to go at next appointment and see what she wants to do. As Deanne said Epson salts is another fantastic way ti increase magnesium and the body can take the magnesium through the skin so its a good addition to tablets. Wishing you relief and happiness. Xx Cath