I did some research and found out this information about theThe Ehlers-Danlos
I hope this information helps you to understand a bit about this inherited disorder that can have similar symptoms as Fbromyalgia as the symptoms are very similar.
There is usually chronic fatigue, muscle pain and weakness, flu like feelings, pain in the joints and numbness and other symptoms.
The Ehlers-Danlos syndromes (EDS) refer to a group of inherited disorders that affect collagen structure and function. Genetic abnormalities in the manufacturing of collagen within the body affect connective tissues, causing them to be abnormally weak.
Collagen is a strong, fibrous protein that lends strength and elasticity to connective tissues such as the skin, tendons, organ walls, cartilage, and blood vessels. Each of these connective tissues requires collagen tailored to meet its specific purposes. The many roles of collagen are reflected in the number of genes dedicated to its production. There are at least 28 genes in humans that encode at least 19 different types of collagen. Abnormalaties in these genes can affect basic construction as well as the fine-tuned processing of the collagen.
I hope this helps you with your question,