For the last week I have felt like I have had something stuck in the back of my throat. When I look in my mouth, I can see lumps on the back of my throat, but I have no pain. Could it be throat cancer? I'm only 29 years old.
Since you have had these symptoms for over a week, it's time to go and get them checked by your doctor. Anything that lingers to the point that you are becoming concerned about should be seen to by a professional. It could be something as simple as acid coming up in the back of your throat or an allergic reaction to something, but only a doctor will be able to tell after an examination.
You can read more about the symptoms of throat cancer here:
Here are some other links that might be helpful to you right now:
7 Ways Your Body Says You’re Stressed
7 Symptoms of Acid Reflux
Understanding Acid Reflux: A Doctor Q&A