A lot of things can make you very tired, and most of them aren’t serious. But fatigue is one early sign of some cancers, like leukemia. Some colon and stomach cancers can cause blood loss that you can’t see, which can make you feel very tired. If you’re wiped out all the time and rest doesn’t help, talk to your doctor.
A fever isn’t usually a bad thing. Sometimes it’s just a sign that your body is fighting an infection. It can also be a side effect of some medicines. But one that won’t go away and doesn’t have an obvious cause could be a sign of a blood cancer like leukemia or lymphoma.
Of course you can slim down when you change the way you eat or exercise. It can also happen if you have other issues, like stress or a thyroid problem. But it’s not normal to lose 10 pounds or more without trying. There’s a chance it could be a first sign of cancer of the pancreas, stomach, esophagus, lung, or other type of cancer.
You may have a full, bloated feeling because of your diet or even stress. But if it doesn’t get better or you also have fatigue, weight loss, or back pain, have it checked out. Constant bloating in women may be a sign of ovarian cancer. Your doctor can do a pelvic exam to look for the cause.
If you don’t smoke, there’s very little chance a nagging cough is a sign of cancer. Usually, it’s caused by postnasal drip, asthma, acid reflux, or an infection. But if yours doesn’t go away or you cough up blood — especially if you are a smoker — see your doctor.