Hello,

As you mentioned that you have missed your first year second semester examination due to health issues ,so in most of the cases you will get back in those subjects and you have to clear all your second semester subjects in next year means in your 4th semester examination with your juniors  . So you can easily pass this subjects in your next year.

It also depends upon college's rules  . But never miss you semester exams of last year that can waste your whole year.

All the best!!