fine lines or wrinkles?

I have lost 103 pounds in 4 mo. and a few days. I just noticed on last wed. I have some fine lines on the sides of my face. Is this from the weight loss? I am so scared and upset been crying about it. Or maybe this is from dehydration? OR every year I get what looks to be fine lines because of dry skin I am not used to this AR. weather (from CA.). I am so OVER aware of any and everything on my body now. SO maybe I am paranoid or maybe I am just getting old (will be 35 in March) just was hoping to have my hair and face left alone. The rest of my body may need fixing and I am ok wit that but my face I can NOT deal with that at all. I am so depressed! Any suggestion on what to try what I should do. It's really not bad it's more noticeable with make up on and I only notice it well, no so did my husband. This sucks! Oh, there is NO excess skin on my face or neck it just looks like little lines on my face. my face is still very firm.