Edit: I'm 20 and I'm 240 lbs.
It's important to understand that we aren't doctors, so our opinions won't be professional ones.
There are a number of things that can make it feel like we're choking, including infection in the throat, so your doctor did what many/most doctors would do in the same circumstances, assuming he looked in your throat at the time.
Did you follow the doctor's instructions in regards to trying the ibuprophen and oral spray in case you did have an infection? Assuming you did follow instructions and it didn't do any good, it would be time to call the doctor and ask to try something else. One of those things could be thyroid testing since swollen thyroid can feel like one is choking. This can happen even if the doctor can't "feel" anything. There can also be nodules on your thyroid, even if the doctor can't feel them.
The tests you need to check for a thyroid malfunction are TSH, Free T4 and Free T3. You might also want to check for the autoimmune condition, Hashimoto's. For that you'd need antibdy tests, Thyroid Peroxidase Antibodies (TPOab) and Thyroglobulin Antibodies (TgAb). In order to check for nodules on the thyroid, you'd need a thyroid ultrasound.
There are other things that can cause the feeling you're having, as well, so talk to your doctor in case there's a different direction he'd prefer to go.
You mentioned your age and weight, but we don't know your height, so we don't know if you're over weight or not, or if you've recently gained/lost weight, etc. Is the sore throat/choking feeling the only symptom you have?
Hello~It would be wise to have the tests the above poster mentioned, if all back "normal" and you and the doctor have tried all options, then I suggest perhaps seeing a chiropractor, he/she will take some x-rays of the affected area, study them and then discuss the results with you, if it is a pinched nerve or misaligned vertebrae in your neck, adjustments will definitely help.
I'm 6'. I've been fat all my life and I haven't seen any weight changes. I have also gone to a physiotherapist about a month ago and he said I had some tension on my neck from working on my laptop. But my front neck didn't hurt by then.
The doctor didn't give me any results, he just told me that my cholesterol was a bit high but nothing to be concerned of. I wonder if they can see any problems going on the thyroid gland through average blood tests? (These were taken in May).
Update. Took blood tests and I'm currently waiting for next week. The neck thing has turned into hot flashes in my neck and chest.