Hey Caitlin,
I just wanted to say to go with YOUR gut. I had symptoms of diabetes for almost 10 months before I was actually diagnosed with diabetes. I had complained of all of my symptoms and made the doctors aware - mine started with heart palpitations and progressed from there. I had heart palpitations, blurry vision (just in the AM), nausea, shakiness, frequent thirst, fatigue(I was sleeping about 16 hours a day - and still tired) ... then the weightloss came at the end of that time frame. I didn't start losing weight until about 6 months after the initial symptoms and then I lost 5 pounds over a two month period. Then in the last month and a half before I was diagnosed I lost about 15 pounds.
My docs diagnosed me with everything from anxiety and stress related disorders to possible mono to an eating disorder. It wasn't until I told them that if they didn't do something I was going to die that they listened to me - yes maybe a little dramatic but I looked and felt awful at the time.
As for the food I had no desire to eat when I was diagnosed. My sugars were running so incredibly high all the time that I was nauseous all the time. I had to force myself to eat. Any high sugar foods and drinks made me sick to my stomach as well.
Also to add - try adding more protein to your meals. Often times when we have meals that are high sugar or high carb and low protein you can get hypOglycemic attacks a few hours after eating. Reason for that is all those sugars and carbs are released into your body and your body's initial response is too release a large amount of insulin to bring it down. Well you release that large amount of insulin to combat the initial spike in your blood sugar. The insulin then drastically changes the level of your blood sugar. If you add protein it will help to keep your sugars stable for a longer period and you may not get the shakiness and lows that you seem to get a few hours after you eat. That is why people will get low blood sugar and they will say I don't know why my sugar is low ... I JUST ate something. Their body just put out too much insulin immediately cause whatever they ate caused a quick spike in the blood sugar rather than a gradual increase like you get when you have protein and such.
To add: I would mainly try the extra protein thing if you are getting the lows a few hours after meals. If you are getting lows just whenever it may be that you just need a snack or something because you have gone to long without eating.
Also to add food with high fat content or that are fried (i.e french fries and pizza and foods of that nature) will cause a prolonged increasing effect on your blood sugar as well. SOOOO if you do have low blood sugar and are going to stop at a fast food place to get a snack. If you get fries get a soda too or something and drink some of the soda first then eat the fries. If you eat the fries first you will not get as immediate of an increase in your blood sugar (not that soda should be the item of choice, but sometimes it is the quickest solution to the problem).
Take Care and good luck with the doc.
Also I am sorry you aren't feeling well. I hope you do not need antibiotics, but if you do I hope they help you get to feeling better very soon.
Love Linds