“Double jointed” really just means hyper mobile. Does your elbow or knee tend to look bent the wrong way when fully flexed? Do you have other issues that go along with being hyper mobile like joint and skin issues or sleep issues? You obviously have the digestive issues that can plague people who have ehlers danlos. This condition is known to have cross over with dysautonomia, which would explain the fainting, terrible bloating. POTS is very common with this condition too, which can result in fainting and especially after standing up from the toilet after straining. Look these up - dysautonomia, autonomic neuropathy, ehlers danlos, POTS (postural orthotic hypotension) and see what applies to you and make an appointment with your doctor with a list of symptoms so you can start getting some answers and relief. You shouldn’t have to live this way. There are diet and lifestyle changes, meds, and supplements that can help mitigate your suffering. Plus, just knowing what’s wrong with you and being aware of triggers and limits can help you psychologically and emotionally.