Hey mate - I think you should chat to the doc about this, but my opinion based on what I've experienced personally (and read about) is as follows:
Glutamine
If you have kidney and liver issues - I would be very hesitant to take glutamine. I think you will find that you will not make full use of the glutamine that you are supplementing because a damaged liver cannot properly process it. I have also read that glutamine supplementation has led to raised liver enzymes in some people (note: My enzymes were raised last year when heavily supplementing glutamine to assist with a flare up. I've dropped it for some time. When I have my next blood test in a couple of weeks, I will hopefully see a bit of a drop.)
BCAAs
Firstly, if you pick the right protein powder, you don't need to supplement these in my opinion. Heck, I take pea protein powder (for its high digestibility and very low cost) and it has good levels of BCAAs. Check out the stats on any of the proteins by bulknutrients.com (I haven't tried its competitors, but ours has the info on the side).
Secondly, I found that my appetite decreased when I supplemented BCAAs. For example, if I was hungry before gym, I would mix up my purple wraath and, along with a nice tingle in the extremities, my appetite would disappear. Martin Berkhan (see leangainz.com) has mentioned this effect too, from memory. See how you go.
Creatine
Honestly, mate I wouldn't bother with the creatine. There are certain people on this forum who willy-nilly recommend people take creatine saying there is no need to cycle blah blah blah, but if you aren't looking for that extra 2% improvement on stage I wouldn't bother. I do not see how the potential health risks outweigh the slight benefits which you could obtain just by training harder, resting better and eating better (or drinking in your case hehe).
Overall
Do some research, but if you eat sufficient amounts of meat (when your appetite is up) you should go some way to ticking the boxes of all 3 naturally.