I'm twenty years old and today is day eight for me following my tonsillectomy. Right after you are discharged from the hospital, you will probably feel like you are improving quickly and that the post surgery isn't that bad. However, it get's worse before it gets better. Today is my eighth day and here are my remaining symptoms:
1. Very sore throat waking up and throughout the day so far
2. Extremely painful ear drums, especially when swallowing food/water (The pain in my eardrums is only recently a problem for me)
3. Slight headache going along with my ear drums I'm assuming
4. Still painful to talk but getting much more tolerable
I hope this helps you! Trust me though, you need much longer than a week! Unless you're a toddler getting it done, recovery sucks

Just keep in mind the whole time that it's so worth it in the long run!