<human>: Can you summarize the given text in a few sentences?

Hi AskDocs reddit, This will be my first time posting here and I hope this will be alright. I am a 19 year old male who previously had a kidney stone that caused pain around this time last year. Last year I had slight nausea but not as bad as now. I took medications that caused my kidney tube to expand and let the kidney stone out. It was about 5mm and after 1 month on medication it came out, I felt so much better for the rest of the year. I could eat as much as I could and I would not feel as nauseous.

However, this week and the previous week (it has slowly/progressively gotten worse) I have been trying to eat but I have been having extreme nausea. I try to take sips of water (sometimes gulp which I know is bad to chug water down) but I am not sure if this is just dehydration. Last year when my kidney stone developed I barely drank water and I knew it, but I never thought I would develop a stone. However, this did not attribute to nausea because I felt fine until the pain started coming. This time around, I have no pain but I have EXTREME nausea. If I try to eat I'll throw up eventually or constantly have that feeling. Even if I eat nothing, I will still feel it but I am so hungry. 

I am curious to know what this problem might be, another stone or what because I am going to the doctors really soon but I want to know if there's any fixable problems for right now. I am at college so I do not have access to many medications/drugs. If more info is required I will list it.
<bot>: I have extreme nausea that could be attributed to a kidney stone because I previously had one but I do not know what is causing this nausea (I had slight nausea during my kidney pain but I could eat in general).