Welcome to HealthcareMagic. Bruising without any trauma can be due to deficiency of vitamins C, K, B12, or folic acid
. Numbness in leg can be due to vitamin B12 deficiency
, thyroid disease
or spinal and neurological causes like sciatica. You need to consult a physician. Take some vitamin B 12 supplements and Iron pills and if the symptoms persist then get the other causes investigated.
Hope it helps you. Regards.