I agree with Paderla here, you need to check in with your Primary Care Physician. And a ENT (Ear, Nose , Throat) Doctor if needed. I think even without a referal you should still make an appointment with a ENT.
Cheers, and don't worry too much. You may find it's nothing :)
Hello and hope you are doing well.
Your symptoms of nasal stuffiness and mucus with blood could be due to sinusitis, but this is usually accompanied by one sided facial pain. Nosebleeds can also occur due to trauma, exposure to warm dry air more common in winter months, rhinitis, infections, vigorous blowing, foreign bodies and deviated nasal septum. I suggest you consult your primary care physician and he may refer you to an ENT specialist if needed.
Hope this helped and do keep us posted.