rheumatoid arthritis
"A wonder-drug to me when I first took it. Almost all the pain in hand joints stopped within a week - after 10-15 years of continuous pain which I had just ignored, but couldn't now face going back to. I'm still almost entirely pain-free in the  joints  -  just a shadow of it in the evening when I'm tired.

I do have side-effects though. Terrible constipation and trapped wind, getting worse at present and making me feel sore inside. Also headaches and irritability in the evening, though these are worth putting up with for the increased clarity of thought in the daytime.

The 'horrible' feeling someone talked of - I had just a week of it. Like another body, full of pain, just behind the new one. alternating like an alternating current..."