We are all rooting for you to heal, Rachael. You will - it's only day 3 and it sounds as though things are getting gradually better down there. Sorry about your throat. That sounds wretched. Smoothies are a great idea. I've heard of some fabulous smoothies, such as spinach and blueberry.
This site has some great ideas for healthy smoothies.
http://simplegreensmoothies.com/green-smoothie-101Here's a recipe I found that has some dairy in (for fats). I forget whether you can eat dairy?
2/3 cup plain Greek yogurt
1 ripe banana
2/3 cup frozen blueberries
2 large frozen strawberries
1 cup spinach leaves
1/2 cup milk of choice (dairy, coconut, soy, almond)
2 teaspoons protein powder (optional)
1 tablespoon of honey, or to taste
What about a nourishing soup?
Gently saute some onions and garlic in a saucepan. If you like, add some powdered spices, like cumin and ground coriander seeds, or garam masala. When onions are soft, add about a cup of red lentils (rinsed), a teaspoon of turmeric, some salt, and two cups of water. Boil until lentils are cooked - 20-30 mins. You may need to add more water. If you want, when cooked, puree in a blender. The lentils should be pretty well pureed just by cooking, but you may want to get rid of the onion lumps.
There are so many variations you can make. You can add some slices of ginger root in the boiling water - if you want, remove them before puree-ing. You could add a squeeze of lemon. You could cook the lentils in chicken or vegetable broth. Sometimes I add some nutritional yeast. Sometimes I'll sizzle some whole spices, like cumin seeds and chopped garlic, in veg oil or ghee (in a separate pan), and stir that in at the last minute.
Onions, garlic and turmeric are supposed to be good for healing.
Good luck!