Be careful!
Mindful meditations may bring you increased happiness.  Decreased stress.  Better control of your life.
Increased compassion toward yourself + others.  Becoming more positive + optimistic.  Better health.
Reduced anxiety.  Better focus.  Increased productivity.  More calm.  Increased clarity.
Present moment awareness may give you inner peace and a better life.

If in doubt, or illness, or under treatment please refer with your physician, medical doctor or other licensed health-care professional before meditating.