Hello and Welcome! I have such mixed feelings when it comes to this. It saddens me to welcome new people to the dx of MS but, makes me happy at the same time b/c it's important that you both know you are not alone in this.
Sandy....the extra aching is likely from the injection unfortunately. Like we do not already have enough of that huh? Try taking an Alleve an hour prior to the inject and it should help with the nasty flu feelings you have.
All those types of things cause insomnia in me so at first I didn't use them but, finally figured I have insomnia anyway so why not try to get some relief from the cruddy feelings after the injection. So now I sit up even MORE wide awake and do not feel as crappy. LOL
Oreo....you are NOT alone in not particulary liking the back of the arm injection!!!! OUCH! I used the arms at first but, after having lost weight I haven't been able to b/c it just hurst to damn much. My bum has become the spot of choice.
Both of you remember to bring the med to room tempt prior to injection okay....I take mine out first thing in the morning, unscrew the plunger at this time as well b/c it will not unscrew as easily once it is warmed up. Will unscrew really easy while it is cold. I just set it to the side and do not inject until later on that evening.
You will have the red blotch appear and it may even itch and bruise a day or so after so this is a normal reaction but, if it gets really nasty looking call your doc.
If either of you just need to talk you are welcome to pm me any time. I check in here regularly.
Be well and welcome.