Back in October I had the covid jab and the flu jab in the same day. The next day I had a huge lump appear under my armpit on the side I had the covid jab. This was listed as one of the side effects so I wasn’t concerned and it disappeared in a day or so but ever since then I’ve had on/ off under arm pain on that side. It’s more a dull ache than anything and it comes and goes, no lumps or anything. Would you see a doctor? I’ve got two young kids so constantly battling some sort of virus and assumed it’s just a reaction to those and the jab but suddenly realised it’s been happening on and off for a couple of months now.