so it started when my bike fell off its sidestand onto the left side but all the damage was cosmetic so i picked it up and drove it home. the next day i went to ride it again and my chain was binding. i already know this is my own stupid fault for not properly lubing it, however after i got that all sorted out i had much worser problems. now it hits false neutrals between 2/3 3/4 4/5 etc... it wont stay in 2nd gear or any other gear unless i hold the shiftlever up as i let out the clutch, and sometimes it will still fall out of gear as i am driving regardless. I really need to know what is wrong with it. I cant figure out how falling on its side or a binding chain could cause all these false nuetrals! can someone please let me know what is going on?