Period has been nowerere to be found since October. Really freaked out at this point and having cramps, back pain, blurred vision, hot flashes amoing other symtoms. I have been trying to get into the doctor but am about to leave on a trip and wont be in till febuary. I am 18 and have had fairly regular periods in the past. If there is anybody who has had a similar experience or knows something about it I could really use the help the internet is only making me more anxious. Thank you