Since getting down to 4mg daily about 10 months ago, my fatigue has steadily increased. I have become virtually housebound, and wake each morning severely nauseous and exhausted.
6 weeks ago, a synacthen test confirmed that I have developed adrenal insufficiency due to 2 years of steroid use. It was suggested that I try adding just 1mg onto my daily pred dose to try to improve my functioning.
I tried that for 2 days. The result has been a full blown return of the paroxysms of muscle tensing, sweating, shaking and nausea that first appeared when I was reducing from 20mg.
The disturbing thing is that two weeks later, after I have returned to 4mg, I am still having them, kicking in now after taking my usual dose. Once they start, it takes about 4 hours before I stop retching, shaking and tensing.
It seems I'm caught between the devil and the deep blue sea - I can't cut my pred because of my adrenal insufficiency, but I can't increase it either.
I have a theory. Pred increases the sensitivity of adrenaline receptors, and the symptoms of the episodes are very similar to those of a severe, prolonged panic attack. So I wonder if the combination of adrenal insufficiency and pred dosing has somehow caused my adrenaline/catecholamine sensitivity to get stuck in the "Max" position, perhap due to inhibition of the enzymes that normally clear the receptor sites....
Unfortunately, my GP has never encountered anything like this and has no idea what to do. Neither do I.
PS My GP's parting gift yesterday was the news that my CK levels are "very high". As I told him, "I'm past caring. Frankly, I am surprised that even one of my test results is even vaguely normal. Bye!"