I think you should take that break and then monitor yourself and what happens during that time you have off from ALA. It'll give you a chance to re-evaluate and see where you're at. You can always resume it at anytime. Sometimes your body does need a break from chelating mercury. It needs a rest. If ALA is pulling mercury out of your organs/tissues, that can be quite stressful and make you sick.

Epsom salts can be helpful in hot baths (and even take orally, though they taste foul) for muscle aches. Makes sure you include enough magnesium in your diet and you wil get this from epsom salts and/or another magnesium supplement. All vitamins/minerals recommended by Cutler maybe necessary and in enough amounts to make a difference and help with certain side effects during chelation (and even inbetween).

I know that muscle ache and muscle weakness can happen in healing crisis of one sort or another, but may also be too high a dose and pushing the chelation too far for your body to handle over long periods of time. You may need to start on half that dose, even if it does improve your mood, it is still affecting other areas and making you feel sick and weak too.

I'd take the break and do some replenishing with diet and supplements and whatever else you think will help. I took many breaks from chelation during my years of recovery from mercury. I chelated if/when I felt like it. I just could not keep it going for too long. I took, like yourself, suffered for it. General overall body aches and weakness and also severe tiredness and I'd feel sick too. That was just DMSA, so I can't imagine what ALA would do, seeing as it's a more thorough and powerful chelator of mercury apparently.