Gamma ray bursts are not formed by a black hole feeding (and definitely not one this small). You are much more likely to die to any number of other things, terrestrial or celestial, than something black hole related

If you want to live in fear of something like that be my guest, but as someone who wrote 2 papers on black holes for their degree, you'd do much better living in fear of things that 1) you have any amount of control over whether or not it'll kill you and 2) have any tangible level of a chance of actually killing you