I understand how difficult it is to concentrate on your studies when you have chronic health problems. However, I will have to be honest with you. Your chances of securing a visa are not high. This doesn't mean you can't secure a visa. First and foremost, the visa officer might doubt if you won't be distracted again by your health issues when you get to Germany. Have you been able to clear your health issues? If you have, I advise you to show solid proof that you really had chronic health problems that affected your studies and that you have now cleared them during your interview.
Also, going for a second master's program doesn't help your case. What was your score in your master's program in India? Are the two master's programs related in any way? I would need the answers to these questions to give you a conclusive response.