Actually it is a confusion, but it is not a problem, and you will ask why?
Because, if you don't insist in realizing thoughts you will not be punished for this by Allah, inshaAllah. Because you are staying away from something you don't know and only Allah knows.
If you want to discover physicall fenomena, than it is another issue, i think here Allah tells us in the Qur'an, see what Allah has made, ponder over it...
If you want to enter in ghayb issues such as the life in the grave, the hereafter, the way the Prophet salallahu alayhi wa sallam - took the messagge, when you will die, predict what you will do tomorrow ecc... this issues are dangerous if we act by our own desires. We can take only what have been stated from the Qur'aan and from the Sunnah.
I really hope you wil find peace and clarify your thoughts. I have had troubles in other issues as you too, but I search always the help of Allah and try to fight the thoughts by learning Islam.
Asalamu alaykum dear brother