Welcome at HCM
    I have gone through your and being your physician i completely understand your health  concerns.
 what is ur age and sex? does this 
stiffness last for a certain period of time? is there pain in ur small joints of hands and feet? for how long u are suffering from it? any other associated problem? like 
diabetes or hypertension? any history of TB in past or exposure to TB? are u having fever? any other lymph node swelling in ur body? are u taking any medication?is there any swelling or 
redness of the joint?
 In my opinion you should visit a 
RHEUMATOLOGIST so that you can be examined and investigated properly if i am ur attending doctor i will look for 
RHEUMATOID ARTHRITIS and  other joint pathologies. sometimes there are 
joint pains without any significant pathology but other causes must be ruled out first.
     i will get your FBC along with ESR , CRP and RA FACTOR .then i will proceed for the Xray of the affected joints. in the light of these investigations i will be able to find any pathology.
meet your doctor for proper management.
meanwhile stay calm and use 
acetaminophen to relieve pain
get well soon
 Hope your query is adequately addressed if you still have any feel free to ask
   Regards
Dr Saad Sultan