Strange sensations in the field of lungs

[The novel]

Good afternoon
I apologize, but I am not absolutely assured or confident in what forum it it is necessary postit.
The matter is that last time periodically began to arise strange sensation in district of lungs - something like second provalivanija in a breast. Difficultly precisely to express sensation. To breathe not difficultly, and even on the contrary there is on pair seconds any ease as though the thorax ceases to be felt.

[The first doctor]

The dear Novel. Quite probably, so extrasystoles (disturbance of a rhythm of heart) prove. You should make an electrocardiogram (electrocardiography) and internally to seem to the therapist.