Hi,
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The cause for the symptoms that you describe could suggest chances of vaginal infection, cervical problems, etc. A thorough examination done along with vaginal swab/smear test will help to look for causative agent. You should consider visiting your doctor/gynecologist at the earliest for further evaluation and assistance. Few of your symptoms could be attributed to chances of pregnancy (if you have been sexually active without being on any regular birth control measures). However, if pregnancy is suspected, you should consider visiting your doctor/gynecologist for thorough examination (to confirm pregnancy related changes/signs in body) and blood/serum HCG level test (to confirm/rule out pregnancy accurately).
Take care.