What is this please?

[VanillaIce1]

Hi Ive been going to the gym this week for the first time in ages. I did lots of arm exercises and my chest felt very tender the next day. Right in this photo where I've circled I've since found a lump it feels quite hard and longish?.
I've only noticed it yesterday I don't think it's been there before. Could this be some sort of muscle strain? I'm worried. Thanks

Giving you a bump- (excuse the pun) I’d see a doctor about it personally.

Definitely see the GP OP. Have you had any health concerns in the past?

I haven't I'm 27 I'm really scared. Will phone GP in morning

Definitely get that checked out!!

I can't see any lump

@WishfulThinking34 It's under the skin if that makes it any less scary.

I've got a telephone appointment today at 3pm. I'm guessing they'll want me to come in and feel it. I'm really scared and worried I have three kids and never experienced anything like this before.

Hope all goes okay. I know when I'm due on my period I sometimes get lumpy bumps around there, scared me to death the first time I noticed.

@WishfulThinking34 That's strange I'm due on in a few days? Hope it's ok then x

Could be an ingrown hair and aggravated from the sweat! Hope you get it sorted x

Just an update I went in as an emergency appt and the doctor felt it and said it's muscle feel so relieved x

What a relief @VanillaIce1

Oh so glad to see your update

That’s great news.

Thank you x