On LDN I developed a weird nickel-sized raised itchy, scaly rash on my outer leg right above the knee. It's not going away despite being off LDN for weeks. I've never had anything like this before. I went to my internist after a few weeks just to have it checked out, and it appears to be a kind of eczema or rash, thankfully nothing worse like psoriasis or fungus.
I've also developed an awful tendinitis in my left hand, wrist, forearm, and elbow, just from playing my guitar normally, as I always have and have never had tendinitis from it before. I might never play again. An achilles tendinitis I've had for 10+ years but was completely in check with no symptoms also flared badly again, and my joints started hurting. The day after going off LDN, the joint and tendon pains reduced a noticeable amount. They're still very bad - can't play, might not ever play again; limp from the achilles pain when first getting up after sitting a few hours, sleeping, etc. -- but the reduction was enough to tell me LDN was involved, if not an instigator.
LDN = chemical drug. Chemical drugs are unnatural to the body. I am really angry at myself that I let myself be drawn in to all the hype and take a chemical drug that can damage your liver and screw up your immune system. Before the rash and the tendinitis, after having no benefits after 4+ months, I even contemplated going off it, but I listened to one the drug apologist hypers who emailed me to say "it can take more time, give it 6 months or a year at least." So I decided to give it a few more weeks to see if I would get all the "benefits" everyone is hyping. Now I am wishing I listened to my own intuition instead of being swayed by the drug pushers.
I'd rather live and be tired than take pharmaceutical chemicals invented by a sick and unbalanced society. That just makes me no different than they are. Just sicker for it, usually. God only knows what this stuff has done to my thyroid antibodies, or what kind of other immune processes or activations it has kicked up or worsened (e.g, candida). But they don't seem to be settling down despite being off LDN for weeks. Maybe that takes 6 months to a year, too - or maybe it never corrects again. I'm glad some people appear to be getting benefit from it, but for me the stuff is like most other things from this culture and society: just another poison.