during reincarnation a soul goes through a renewing process, usually becomes a blank slate on adaptability to a new body so it could be used to it easier. except yours didn't go through completely and deep down still used to the body of your past life, causing that wrong body feeling, nothing i can think off right now will help
The reincarnation reply only works if you actually believe in reincarnation. It is most probably something totally unrelated, I know that you can get a lot of strange feelings with medical related issues, such as anxiety.
Hopefully this will pass soon and you will return to feeling yourself.
Reincarnation exists whether you believe in it or not. Just because you don't believe in something doesn't mean that it doesn't exist it just means that you aren't open to that possibility, or rather that your mind hasn't been opened to it, which usually means that you have a very young soul.
If you accept astral projection as part of your beliefs then you must accept reincarnation as well since it shows you proof that there is a soul, it can leave and there is a place our souls go after death.
Yes we can astral project but its hard to master it and quite frankly dangerous because there are other entitys that might want to possess your soul and can smell it and follow you to your house and then a portal into your house by either possession or through following your soul to the new location and can then haunt you and your house or their are demons that just want to possess you such as demons.but unlike all demons some want to cause harm others just want peace to their spirit.others want to stay,their always there for a purpose and cause.