hi and welcome to the forum. your list could be the result of many things.
if the docs haven't been able to help so far, consider looking where they tend not to - nutrition.
re muscle pain, heartburn, fatigue, swallowing problems, and anxiety, i suggest you investigate magnesium
re urogenital pain/burning, bloating, gas and depression, you might want to look into zinc.
first, are you getting recommended amounts from food? you can review your diet and compare to higher daily intake numbers.
do you eat enough healthy food sources of zinc to get up to as much as 40 mg per day?http://www.whfoods.com/genpage.php?tnam ... #foodchart
for magnesium, do you eat enough healthy food sources to reach 400mg per day?http://www.whfoods.com/genpage.php?tnam ... #foodchart
if not, your food options are there to start boosting in your daily routine. if you think you need to supplement, it could be a good idea to test some levels first.
if you are ok just trying supplements, you need to be careful with doses and forms.
for magnesium, choose a soluble absorbable form like magnesium glycinate over insoluble inorganic forms like mag oxide. while experiencing symptoms, you can try for at least 600mg total mag per day from food and supplements combined.
for zinc, you would choose zinc citrate balanced with some copper, in the ratio 25 units zinc to 1 unit copper. for up to one month you could try up to 100mg per day of zinc/copper, in divided doses to prevent nausea.
to prevent chronic depletion of essential nutrients, consider whether you need to reduce levels of wheat gluten, phytates, alcohol, sugar and dairy intake, or high levels of physical activity and sweating.
hope that helps