I have had a really bad headache for a week now... so I have been taking Tylenol and Motrin for it... but on Wednesday I started getting a new symptom... I was having trouble swallowing the pills... they just feel like they are stuck in my chest or esophagus.. and today It has gotten worse... feel my throat narrowing...
Wanted to know what could be wrong with me... and what should I do?

It's time to see a doctor.

If you are having trouble swallowing you should go to the ER. You could be having an allergic reaction to something.

You also need to make sure you do not have menengitis if you are having these symptoms. Probably not, but not worth taking a chance. If you can't swallow and it's getting worse, what's next is not being able to breath, so waste no time and go to the hospital.

Even if it turns out not to be anything terribly serious, they will provide you proper diagnosis and advice and can help relieve your syptoms, while putting your mind at ease as well.

But definitely - can't swallow, throat narrowing - that's a medical emergency.