Hello Chrissie
I think the treatment which is chemo is very agressive and can leave some people really down, ill and depressed once it starts to work you feel a whole lot better but it is a struggle at first as for the shakes i had terrible ones due to kidney damaged cause mainly by to much calcium in the blood they gave me chemicals to get it out of my system but if you have none or not enough calcium it makes you shake they took all mine out then gave me calcium tablets to build it up again as soon as they got the levels right i stopped shaking perhaps this is what is causing your husbands shakes good luck for your husbands treatment
Love Jo x