Toddlers early terrible 2 or behavioral problems

Okay so I don’t know if this is normal and I’m like over thinking this ! But I’ve been noticing that my daughter has tantrums for no reason , like I really don’t wanna make it seem like it’s no reason but it is . For example if she’s trying to put a cap back on a bottle and she can’t or it’s taking to long she lashed out into a tantrum, there’s many situations like that or close to that . But she’s 18 months and I know it’s like terrible twos (early idk) so I’m not sure if it’s just early terrible twos or she has a behavioral problem. Her dad has anger issues he wants his way, and really just ANGER ISSUES . I’ve also notice my daughter low key likes when people is in pain . She will dig her nails in my skin and when I said ouch she smiles and try to her me some more