When i go to the toilet it stings and i have like this weird spotty brown stuff on my underwear. i only got my period a year ago so should i see a doc?

Get checked/treated : Ouch! it sounds like a urine infection. If you do you will likely need treatment. Easy to check without difficulty. If you have a doctor relationship they may choose to treat you without needing an appointment. Bleeding can occur with many bladder infections. It is also possible you may have a vaginal infection as well. Get checked and be well!