Yes, it's probably your problem is parasites. Medical tests are almost always negative because bugs can be in all parts of the body, not just the colon. Their eggs enter the bloodstream through the colon and end up in the liver and can end up in all parts of the body with their eggs and the biofilms they can create to protect them from harm.
I did http://www.oldfashionedspices.com
dewormers. He's about the best herbalist I know of. Was on the stuff every day for over 5 years, did Colon Cleanses until my colon was cleaned out of the hard stuff stuck on the walls of it, and did Liver Flushes at the same time. It took me aobut 6 years to get rid of all the parasites, then one is not always sure that's the case. Most people do have parasites due to our world with so much pollution in it along with the solvents that will dissolve the outer coating on the parasite eggs and allow them to hatch in our bodies. Medical doctors will laugh at you, call you delusional and if they do see the parasite you brought in in a jar, they'll treat you with drugs that just won't do it, because you can't take them long enough to do any good. From my long experience of getting rid of colon cancer and a liver full of parasites, the only thing that works is doing a natural dewormer for a long time and cleaning out your body. Stay ON a dewormer that's natural as maintenance about every 3 days to make sure they're gone even after all you've done to clean out the body. they will be lurking somewhere in your body. The only bugs I am familiar with that can get in muscles is trichina worms that are pork tapeworms. There is much I don't know about parasties, but what I concentrated on was killing them off and allowing my body to dispel them through doing the cleansing procedures. They will, along with the dirty colon, take out your nutrients, so you have to replace them with supplementation. Probably the B complex and all others for a while. They will make you depleted nutritionally. A dirty colon will not allow you to absorb calcium so your teeth and bones will suffer because of it. It's not just the parasites; it's the whole picture. I did the Coke flush that you can find on CZ and used Richard Schulze 's bowel cleanse. Your pencil-like stool says to me you need to clean out your colon. that will get rid of the bugs there, but stay on a maintenance dewormer for the rest of your life to keeop them gone, no drugs, and that means not even OTC drugs or other poisons that kill off body cells. Candida is there to clean up the mess and will be able to be balanced with the good bacteria once the colon is cleaned out and you stop using Antibiotics . We do have natural Antibiotics , so do some research on those. Olive leaf, garlic, and others. Good luck.