massive pain injecting

[39+1]

injected some b12 into my thigh using a 23 and could not do it the pain was unbearable pushing it in. switched to a 27 and still hurt alot but able to inject. cant work out why because i injected into my other thigh on friday and worked legs on thursday. does anyone one have any reasons why i would get so much pain out of the blue?

Cheers,

rub some ice on the area before you inject. if yiou cant handle that then quit doing it. Emotionally you cant handle it.

[Charger527]

rub some ice on the area before you inject. if yiou cant handle that then quit doing it. Emotionally you cant handle it.

im pretty sure i can it was just a random one of thing which is still a bit puzzling