Suggest Remedy For Multiple Ailments

Over the past few months I have been experiencing extremely different symptoms. During the beginning of the summer I was having trouble with a sore throat which turned into pain in my ears and vertigo and chronic migrains. My doctors said they think it was due to plant allergies considering I was working on a vegetable farm. I have had constant nausea, sometimes worse than other times. I have head aches daily, not migranes as bad as before. I feel dizzy and recently the point where my rib cage meets right above my stomach has started hurting and is preventing me from sleeping. I have also been getting twinges of pain in my arms and feet as well as my chest. A few weeks ago I went into the doctor for a migrane and flu like symptoms that have almost all gone away. I have been having diarriah, been feeling like I need to eat constantly, but nothing sounds appetizing. I am having trouble sleeping due to the pain by my ribs and the nausea.
I have at bad anxiety for the past few years and know this may be contributing to the symptoms. I have had my blood checked for low iron levels, white blood cell counts and more. The only immediate problem found was very low vitamin D. I have frequent panic attacks and am constantly worried that I am going to have cancer, a heart attack, or a stroke.
I eat pretty healthy, no fast food, carry water with me everywhere, not very much sugar and dairy (I think I am lactose intolerant). I often have nightmares and feel sick in the morning.
My mother has hyploclycemula (not sure how to spell it) and her family has a history of diebeties. My father is lactose intolerant and his stomach is very sensitive. His family is also speckled with high cholesterol.
I am 5’ 5”, 20 years old, and 115 lbs. I do not have health insurance and probably worry to much. Do you have any idea what is going on?