Are you around 15? You are still growing, your body temperature might increase in the next few years, for many reasons. Your hormones can cause drastic shifts away from normal temps, like the days in ovulation or days in menstruation (my lower belly skin temp is very high during). And, if you ever get pregnant, it could run very high the duration! Then menopause and stuff. Once you hit mid 20's you'll probably have more fat on you, so that might increase it.
You want to be a little warmer to people? Don't change yourself just to fit their expectations. You will find that being nice to everyone makes you vulnerable and you would quickly become obligated to every person around you. Wanna get run through and used? Obligate yourself to constantly juggling the caring and helping dozens of people at the same time, you will have no time to grow yourself as a person or do things that make you an individual. While most people won't take advantage of your kindness and you might enjoy helping most of them; however statistically, the more people you open yourself up to, the more likely you could be hurt.
Learn to sharpen your blade and keep up your shield, lest the thousands of men you will have to deal with, all day long, by the time you hit your mid-20's will consistently and instantly try to obligate you to them. Strangers, all day long, might demand you give them your energy and time. Don't let them accuse you of being cold-hearted when you don't give them what they want. I have had them get very indignant because I wouldn't stop and give them attention. Save your kindness and compassion for the people you have determined deserve it. Not spreading yourself out to everyone means that those closest will receive a concentrated form of care and love.
You don't have to be like other females, do you understand that? Not putting on a show of kindness and warmth towards every human being you encounter doesn't actually make you less feminine. It can actually keep you more wholesome and more youthful for longer!
Keep on arguing, too, to keep your mind sharp. Expect people to not like you. Just do what comes naturally.
Blood typing can change under a few circumstances. For instance, I am O-, but tested as + in the first 8 weeks of my pregnancy. The same happened with my little sister. Blood typing cannot determine personality. However, sudden large deviations from normal temps may collaborate with your other body functions and result in temporary personality changes, like an enormous mood swing or something. :)
