Is it normal that i get butterflies when i think of her?

There's this girl I have had feelings for a while now- it used to be a small crush- and whenever I think of her I end up either smiling with a blush or I end up getting butterflies in my stomach (hence the title).

Moreover, for the last week or so ever since I started acknowledging my feelings for her, I have just wanted to... Strive to be a better person for her and for those whom I hold dear. I've been somewhat of a cynic and loner ever since my last heartbreak and I thought I'd never feel something special for someone ever again (I even actively avoided the feeling) but the moment I first met her I had this gut/heart feeling that she was special somehow, it's always been at the back of my mind but it wasn't until now that I've finally decided to face it.
Ever since then, I guess you could say that I've started to cherish the simpler things in life now. I cherish those I hold dear and even aim to act like a better and happier person.

Not to mention, a really close friend of mine whom I have known all my life is terminally ill with cancer and I suppose that's another thing that's made me think about the fragility and preciousness of life and those we love...

Anyway, thank you all so much for reading and I hope you all have a great day

God Bless