Hello,
It looks like allergic reaction of the lips which is causing these bumps. The other possibility is of herpes labialis. Drink plenty of water and take multivitamin supplements and do not apply lipstick or other cosmetic products for some days. Use a humidifier to moisturize the air in your home and apply shea butter or Vaseline on your lips.You can also take some antiallergic medicines like Benadryl or Claritin.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
Sounds like it could be an allergic reaction to something you ate or something you wore...soap, perfume, clothing.
Could also be mild cold-sores, impetigo, bug bites, hand foot and mouth disease, etc.
I'm willing to bet it's an allergic reaction or sensitivity though.
You could try lip balms, allergy pills/benadryl, calamine lotion.
If nothing helps, see your doctor.