mobile

(had rooted phone running cm12 nightly earlier) So i downloaded the oxygenos file yesterday, forgot to extract and directly went to TWRP, clicked wipe (ticked everything EXCEPT internal memory) then went to the .zip file of oxygenos and attempted to flash, Obviously that failed and as a result i had no OS. Did a fastboot thing and flashed cm12 back on (already had file on phone) then extracted oxygenos, went to TWRP and wiped all except internal then flashed and successfully rebooted.
Then, I even had to flash SuperSU for root again, a new version since the one on my phone was old i guess
Here's the thing now. I have all my apps up and running, but i cant find ANY of my photos, videos or music. At no point did i forget to untick internal memory.
WHAT CAN I DO??
(kinda Newb to this whole flashing and rooting thing, apologies)