My thoughts are:
1) Sore throat. If it started after OP, it's probably detox rather than bacterial infection. Lots of people have reported sore throat after beginning and should go away. (There is certainly a possibility that you also have strep or something, but do know that sore throat can and does follow OP.)
2) Stomach. I have read about people having upset stomach while or after OP, or another thing you'll see in OP archives is the question, "OP makes me have to go to the bathroom." Again, there's a possibility that you have a stomach bug or food poisoning. But, there is a strong possibility that it's just OP. There is a strong connection between OP and the digestive system: oil in the mouth "tells" the stomach that "fats are on the way!" and it begins to prepare for them (this is why you don't want to OP on Day One of a Liver Flush
-- even though we don't swallow the oil, our stomachs react to its simply being in our mouths).
I would give it a couple/few days and see if your throat/stomach symptoms get better/go away. You could go to the doctor and get a strep culture later in the week but I imagine this is OP-related and you won't have the symptoms much longer.
I have used toasted and black sesame oils when they have been the only thing around -- maybe they are not the ideal, but I am still here!