If my girlfriend says she is not feeling well, such as a cold, or it happens once a month, how should I comfort and care for her?

You don’t need to be too nervous. Colds and menstruation are girls' privileges, especially those with weaker constitutions, and colds are even more pervasive. In addition to paying more attention to her daily life and telling her to have regular diet and daily life, you should spend more time with her during these two special periods. Sometimes girls don’t really want to talk during these two periods, they just want to rest quietly. Of course, if there is someone who loves them, they can accompany them silently and prepare warm water, medicine and delicious food for themselves. With food, girls will be very happy. Therefore, actions speak louder than words. Care in peacetime. Finally, I wish you to complete your love journey as soon as possible and enter the marriage hall!