OP: Although I'm away pain sensations can be expected, this uncomfortable feeling does feel like the wrong type of discomfort but is my only point of focus. It seems like something I shouldn't be focussing on, or maybe I am over extending when breathing, but I don't think so. That being said, my practice has eventually led to pleasant sensations and having a tension to wave like movement when breathing.
Judging the type of sensation can lead to negative latent tendencies:
(1) the latent tendency to lust reinforced by being attached to pleasant feelings;
(2) the latent tendency to aversion reinforced by rejecting painful feelings;
(3) the latent tendency to ignorance reinforced by ignoring neutral feelings.
Pahāna Sutta
Whatever feeling on feels one should:
If he feels a pleasant feeling,
- he understands that it is impermanent;
- he understands that it is not to be clung to;
- he understands that there is no delight in it.
If he feels a painful feeling,
- he understands that it is impermanent;
- he understands that it is not to be clung to;
- he understands that there is no delight in it.
If he feels a neutral feeling,
- he understands that it is impermanent;
- he understands that it is not to be clung to;
- he understands that there is no delight in it.
If he feels a pleasant feeling, he feels it in a detached manner.
If he feels a painful feeling, he feels it in a detached manner.
If he feels a neutral feeling, he feels it in a detached manner.
Dhātu Vibhaṅga Sutta
OP: During concentration the main thing I can feel ...
Since you seem to be practising concentration meditation, one should:
- know your mind has wandered off
- know the sensation or stimuli experienced while being equanimous without any aversion to the unpleasant or attachment to the pleasant
- know the sensation or stimuli experienced is impermanent
- bring back your focus to the object of meditation (initial application - vitakka)
- after bringing it back try to sustain the focus with the object of meditation (sustained application - vicāra)