It doesn't make me shaky. When asthma was first diagnosed and Ventolin wasn't helping (nor the stuff in the brown inhalers (beclomethasone, or something) which I subsequently discovered prevented nothing for me and actually made me iller), the doctor I was seeing then in Oxford just got cross with me and told me to take more. I was shocked at her attitude and just I stared at her for getting cross (I knew nothing about asthma at that point) and she apologised but essentially said, well that's the treatment, take it or leave it. And that has been the message ever since from every other doctor I've seen. So, you see, I've got the message!
Yes, I've wondered about those myalgias and suppose that the doctors have too but the treatment is painkillers, isn't it, which I take anyway.
It's quite possible that the liver in faggots is the only liver I eat. Not terribly fond of it in its natural state, though my mother used to fry lamb's liver with bacon and that was nice. I chuck chicken liver in the stock pot though and boil the hell out of it.