To hurt someone or something means to have a bad effect on them or prevent them from succeeding. The combination of hot weather and decreased water supplies is hurting many industries = damage
give trouble or pain to; "This exercise will hurt your back" cause damage or affect negatively; "Our business was hurt by the new competition" hurt the feelings of; "She hurt me when she did not include me among her guests"; "This remark really bruised me ego" feel physical pain; "Were you hurting after the accident?" used of inanimate objects or their value suffering from physical injury especially that suffered in battle; "nursing his wounded arm"; "ambulances
A feeling of hurt is a feeling that you have when you think that you have been treated badly or judged unfairly. I was full of jealousy and hurt = pain