Help with female 8 month old kitty

Having never had a female kitten before I am not sure if this is normal or not. Over the past couple of days I have noticed various lumps on her stomach. Most of them are near her teats. Is this a sign that shes coming into heat or is this something completely abnormal?? She is behaving and acting quite normally. She doesnt seem off colour and they are not painful to touch. Is eating and drinking normally too. Any help would be appreciated

She very well could be in heat /.... I suggest at least call the vet and describing this