I have a throbbing pain in my upper jaw and also a cold from the past couple weeks. are they related? could the toothache be due to some other reason

Absolutely: Could be sinus inflammation. The nerves are so close to one another, that in many instances a patient would swear they had a major problem with their teeth. When the sinus condition passes, so should your toothache. If not, see your dentist.

Possibly: You may have developed a sinus infection after your cold. Because the nerves from your upper molars are in close proximity to the sinuses, a sinus infection can sometimes cause a toothache or referred pain to the upper jaw. Or it could be a toothache that became sensitive after your cold! If you have more sinus symptoms (pressure or yellow nasal mucous) see your MD, otherwise see your dentist!

Yes: Yes, a sinus infection can cause pain in the upper molars. Conversely, infected upper molar teeth can cause sinus infections. See dentist to sort out problem.

Contact ENT: See your ENT to ascertain whether a sinus infection is evident. Maxillary teeth may hurt either bilateral or on one side due to a sinus infection.

See your PCP first: Some patients are indeed diagnosed with ear infections but it may come as a surprise that most ear pain has nothing wrong with the ears.The most common cause of ear pain in an adult is the temporo-mandibular joint or TMJ. See your PCP first for consultation.