It has been a year and half now that you attempted the suicide
. A onetime overdose of the midols and motion sickness
tablet can cause an acute liver injury
, not a chronic one.
I do not think you have damaged your liver. To be sure of this, you may get your liver function test or LFT done.
The sharps pains in your stomach may be due to gastritis
. Consider taking antacids for some time and look for improvement in your symptoms.
I wish you good health.