As far as your personal experiences are concerned, I’m not critisizing what you say you experience. You sound like a genuine person to me who is relating what you feel and even the sometimes confusion you feel by having had these experiences. That in itself speaks to your credibility.
Since I have not had the experiences you have, I can’t comment either way. It would seem that your experiences suggest that Time Travel is more a spiritual experience than an actual physical one, but even that which can be described as the “spiritual” side of each of us as individuals, remains undefined itself does it not.
Ergo, I cannot dismiss them nor can I accept them out of hand. No critisism intended there. Just ponderance of the fact that to me they are “interesting”.