Hi. I had the same 'lump' sensation out of the blue in January and found it quite alarming. At the time I was having a lot of mucous from a cold back in December, and was a bit hoarse.
I made an appointment with an ENT and he scoped my throat via my nose (not as bad as it sounds). He found nothing remarkable, suspected allergies to some extent, and set me up for a FEEST test to see if reflux was the problem. The test checks the swallow mechanism and observes, via video, what happens in the throat after swallowing.
The test, administered by a voice, speech, swallow specialist, showed what appeared to be LPR, which is reflux that comes back up and irritates the voice box. I haven't spoken to the doctor yet, but the specialist was very certain. The test, which uses green-dyed applesauce, crackers, and green-dyed liquid jello, allows the doctor to observe, via the nose/throat scope, the area around the upper esophagus, which should be pristine. In my case, after swallowing, there was residual green liquid.
The test takes less than 5 minutes, is a little unpleasant, but tolerable considering it gives you a second set of eyes looking at your throat and takes video so you can see and hear an explanation afterward. It goes a long way to providing assurance to our otherwise doubtful selves.
The symptoms of LPR are different than GERD in that there is typically no heartburn. At the time of my test I was on one times 40 mg of omeprazole (prescription Prilosec) daily for only about a week (these don't work overnight, some need several months). I was supposed to be on 2 times 20 mg, but the insurance company wouldn't do it (I fought, and they're doing it now).
Knowing all this didn't help me deal with it any better than before. HOWEVER, against my better judgement I did a little more research on the Internet and found the following link. When I heard Dr. Bastian talk about 'why' the lump occurs , it made me feel 1,000 times better and I found it fading away; perhaps this will help you too. Here's the link.
http://www.bastianvoice.com/video_cricospasm.htmLike many of you, I have been blindsided by some of the symptoms of peri-menopause. Panic attacks, anxiety, acid reflux, Mr. Lump, and palps. I have made a commitment to myself to be healthy, make sure not to attribute anything to peri until a doctor has ruled out other causes, and to maintain my mental health.
For my mental health I found a wonderful local resource who specializes in anxiety and have begun therapy to deal with it. If you are experiencing with panic and anxiety seek help from your local teaching hospitals or national anxiety associations (try Anxiety Disorders Association of America's Find a Therapist search). At the very least, pick up the book 'Hope and Help for Your Nerves' by Clair Weekes. Back in the late 80's/early 90's when I was dealing with panic attacks for the first time, it was her technique that got me past them. I am relearning the technique now and it is working just as well as the first time. Its back in print, cheap, and you can get it from Amazon.com.
I wish you all the best. I hope my experience can help you just as much as your contributions have helped me.
Sue