Suddenly having the sniffles quite often this week...runny nose?

Spring time: Spring time allergies are typically from tree pollen. Usual symptoms are sneezing, sniffles, itchy nose, nasal congestion, runny nose and eye itching/watering. It's also possible that it is the beginning of a cold virus, but time will tell.

Allergies.: That sounds like allergies. Nasal congestion, runny nose, cough, headache, facial pains and earache can be triggered by fragrances, dust mites (sweeping the floor), grass, trees, pets, environmental molds and such. There are outdoor and indoor allergens. OTC nasal steroid and nasal saline are worth a try.