yes you should be concerned. both by the pain and the "red streak". although it is not possible to make a blind diagnosis over the internet based solely on the information that you have posted my recommendation would be for you to see a medical professional so that you can have that painful thump properly examined and appropriately treated.
finger infection. i have sudden sharp pain in my thumb that started about three hours ago and it comes and goes. now there is a red streak moving from the base of my thumb up to the tip. i dont have any noticable cuts or injuries. i also have no fever but i just feel kind of blah. should i be concerned?