Thank you for your query.
Yes its possible when frontal lobe
is affected that affects personality. Limbic system
is concerned with emotions that is amygdala and hippocampus
Sometimes people suffer from amnesia also . I think you should consult a neurologist
with your specific issues and history because different parts of brain would lead to different presentation .
Hope you are satisfied with the answer.
If you have any further queries feel free to ask.
Wish you good health.