I'm now on the Life Extension Trace Minerals complex plus separate magnesium (malate and glycinate) and calcium (citrate), so I'm not getting antacids from my minerals now. Starting digestive enzymes (Quest, which have a low dose of betaine hydrochloride in there too) has really, really helped. After finding the article showing that it's best to have ferritin levels of 75-100ng/l when you have Restless Leg Syndrome, where mine was at 21 (normal according to the NHS!), I have now been put on ferrous sulphate tablets. I'm working up to three a day, and so far am tolerating them fine. Honestly, I had almost every symptom of anaemia possible, and the doctors have always said my iron's a bit low, so I have no idea why it's taken this long.