@kjoed53 good to hear.
I wondered that also since a nurse demonstrated and gave me the first one and no welt. The second one the welt was larger than a flat egg but raised and remained after the third one (two weeks later) and the third created another. My doctor appointment was a week after the third injection and the first welt was still there but reduced along with the new welt. The doctor did look at both and decided I should not continue.
Guess everyone’s reaction is different.