Hi This Morning I Was Out In The Bush With

hi
this morning i was out in the bush with a friend when i fill a sharp pain in the back left side of my neck on the shirt line after pulling my shirt off nothing was there but a single mark with a hole in it found what looked like to be a bee sting but not shore as both of our eye sight not the best this was around 10am the bite was a bit intense for a hour or so . but now i have swelling under my right arm pit with slight pain and the joints on the right arm feeling a bit sore . as well with the left side of the neck at the back