I'm freaking out.

First off, let me say that my problem is mild in comparison to some parents, and I know this. But here I go, my son is barely 2. He had his first surgery in late march for a thyroglossal duct cyst. Had it removed, as far as we know. And then I notice another lump in his neck. Doctor says "ahh it's fine just swelling". Which I know isn't the case so I take him in. Once again we're having surgery. So he just had his second surgery this pst Tuesday 5/16/17. Im notorious for being a worry wart and after all this it's made me worse. So we're what? 3 days out? And now I see a huge buldge in his neck. My husbands telling me to chill and it's just swelling but it wasn't there with the first surgery. Mind you, this past cyst we got removed was the size of a golf ball. The doctor told me there may be some swelling. But this is like huge. We go back Wednesday but I'm just wondering if ANYONE out there has had a child with this or anything. Anyone I can talk to and discuss similarities? Am I overthinking? I'm sorry I don't know where to post this. And thank you to those who read this far. Any comments welcome.