Some symptoms of black magic are indicated below.
Changing the colure of eyes into grey colure
Having bad breath
Unexpected increase or decrease in weight
Unbearable headache
Having bad odour getting from body
Getting changes in voice
Getting a problem of not remembering anything
Getting forget everything at once
Getting changes in voices and languages
Drinking massive amount of water
Eating massive amount of food
Getting massive amount of changes in skin like dry skin, pimples, dark spots etc.
Harming yourself or putting cuts on different parts of body
Having blackouts
Having extreme body pain throughout the day
Want to cry unnecessary
To stay ill despite of clearing all the medical tests
Constant back pain
Constant pain in stomach, kidneys
Having a feeling of inclination of needles and nails
Having a feeling of running insects on body
Being fit by medical reports but not having ability of child in males
Feeling of being sleepy all time
Massive constant increase or decrease in blood pressure this can be happen because of jinnat
Having blood vomits after a feeling of being pressed something in heart or lungs (it is because of becoming a reason for sudden death)
Before indicating the signs of black magic I wanted to clear one thing that some people says that in this modern age where all the solutions of all diseases are possible through medicines then to believe on these things is a kind of backwardness and illiteracy. It is not necessary that magic can effect on every person and all the problems can be because of black magic. It is not right to consider that all the problems are just because of magic.
The reason behind these kind of problems is spiritual or medical can be explained by a tabeeb only. It is true that many diseases can be healed through medicines. But there are many disease are seen which are not getting healed through medicines, no medical test reveals the problem and then any person like us recites some verses of Quran in front of him and the disease gets healed. The meaning of saying is that the solution of medical problems is in medicines and the solution of spiritual problems is in spiritual treatment.