chest pain and stiffness

I am a 32 yrs male and had a severe pain in the right side of chest, back and right hand a month back. I am a software programmer and now feel getting fatigued very easily and am even not able to sit for 3-4 hrs in front of the computer. I was diagnosed for this and had ECG, Colour Doppler Echo, Treadmil test and basic blood tests done. My blood tests were ok with only Lymphocytes count of 15 and MCHC of 35 only being abnormal.

My Colour Echo report says :

1. Pulmonary : Normal, PSV : 0.89/s, PR 0/4
2. Aortic : Normal. No of cusps 3. PSV 0.74/s, 1/4AR
3. Mitral Valve AML : Mildly thich & Prolapse Ewave 0.87/s Mild MR
PML : Mildly Thick Awave 0.53m/s, E/A ratio > 1, Normal Motion DT = 210 m/sec
4. Tricuspid value Normal, Ewave 0.7 m/s 0/3 TR, Awave 0.5 m/s

Is this report OK? Now I have been advised Nebicard 2.5, Zocam 0.25 and Ecosprin 2.5 once a day. Prior to this I never had any major problem and was living a healthy life, now i have started going for brisk walk in the evening for around 30 mins, other than that I have made no changes to the lifestyle and diet.

The chest and back pain has not fully gone and it recurrs two or three times a day which get's better if I take bed rest for an hour or so. I get tired very soon and am not able to go to office for continous 4-5 days. I also have a increased pulse always above 80/min between 80-86 per min. why am I not feeling well inspite of taking medications ? kindly suggest. Do I have some other problem or I am not getting diagnosed correctly ?