how can check in my body which hormone is high for...

what tests do you need to check out the hormonal imbalance that cause obesity ?
1. blood sugar test 
2. HBA1C
3. thyroid test 
4. productive system hormones ( for females )
5. growth hormone test 
what speciality of doctor is needed in this case ?
- endocrine doctor 
Medication or products that can help weight loss ( medically proven ) :
1. caffeine extract suppliment ( burning fat ) 
2. green tea extract suppliment ( burning fat ) 
3. orlistat ( weight loss )
Does those products or medication have side effects ?
for first 2 products , its not expected to have any severe side effects . but for orlistat which is the medication , it may cause :
1. urgent bowel movement 
2. fatty or oily stoo
3. increase stool discharge 
4. stomach pain
5. vomiting and nausea
6. diarrhea 
7. general weakness
8. dark urine 
9. loss of appetite 
10. flu-like symptoms 
11. headache pain 
general advices :
1. regulat your meals and have healthy eating habits 
2. avoid fast food & and oily meals 
3. avoid suger and alcoholic or soft drinks such as cola 
4. have light or no dinner meals 
5. exercise regularly 
6. sleep early and have a plenty of rest 
7. avoid stress and anxiety 
8. drink plenty of water 
9. make sure you are not taking any medication that increase weight as a side effect 
10. consult your doctor about taking medication or suppliment