Dear
Welcome to HCM
We understand your concerns
I went through your details. There are many conditions with which you can have a lump in throat. These conditions are purely physical and you should approach a doctor for evaluation.
But, The travelling lump sensation could be caused by pure obsession and
anxiety. Your chest pressure explains the anxiety part. This anxiety lump feeling can occur rarely, frequently, or persist indefinitely. This feeling can precede, accompany, or follow an episode of
nervousness, anxiety, fear, and elevated
stress, or occur ‘out of the blue’ and for no apparent reason.
The combination of good self-help information and working with an experienced anxiety disorder therapist, coach, or counselor is the most effective way to overcome anxiety and its many symptoms.
If you require more of my help in this aspect, please use this URL. http://goo.gl/aYW2pR. Make sure that you include every minute detail possible.
Hope this answers your query. Further clarifications are welcome.
Good luck. Take care.