yes,yes and yes lol.
yes lower back pain has always been a problem and i have heard of many complaining about this.
yes also to insomnia,i have been on sleep meds for about 8yrs now and without them would only get a few hours sleep.
baclofen is probably not the cause with it being a relaxant.
yes,controlling body temp can be a problem.
i get cold very easily but too much heat gives me chronic fatigue.
60mg of baclofen a day is a high dose and the maximum oral dose unless given in hospital,i used to be on 60mg but i cut down to 40mg.
if the oral dose is not helping ask his neuro about a pump.