It all depends on the cut off this year for the various professional courses. Every year various sites try to predict the cut-off which is obviously difficult. One of the methods is to have an idea of the cut off for the previous two years, the number of students taking the exams and the seats available.
1.PDF of KEAM cut off ranks for 2016, please check page 2 and page 4 (https://drive.google.com/file/d/0B2GKjeMqs8QQWUNYaFNKNzNvR2M/view).
2.PDF for KEAm cutt off ranks for 2017(https://drive.google.com/file/d/0B2GKjeMqs8QQN1NjTDRGRld3dVk/view) please see page 41.
3.This link gives you the cutoff for 2017 for the various colleges and the degrees form round 1 to round 7 (https://collegedunia.com/exams/keam/cutoff).
You should be able to make it for BHMS/BAMS. What I suggest is, now that the ranking is over, please get ready for the counselling rounds and seat allotment 1,2,3. Utilize this time to do some background research, getting your documents in order etc
I would say keep options open for MBBS,BDS,BHMS and BAMS
Please check the collges, the courses and the fees applicable for the courses. Make a list of the collges in Government, Government aided/controlled, Private-self finance.Then anaylse the colleges via based on their ranking,academics, fees etc.
Once you do this then you will be in a better frame of mind when your turn comes at the counselling. You would have some reliable data to base your choice on. I have given the links for the good colleges, you can cross check with the last years cutoff pdf files and then make your own potential list for MBBS, BHMS, (and BDS,BAMS)
(https://collegedunia.com/bhms/kerala-colleges?sort=rating)
(https://collegedunia.com/bams/kerala-colleges?sort=rating)
(https://www.getmyuni.com/mbbs-colleges/kerala)