feeling that twitching feeling again.

Hi,
Welcome to ehealthforum,
The symptoms (abdominal cramps, absent periods, headaches, dizziness, backpain, stuffy nose) could be few symptoms suggesting pregnancy possibility. If you suspect chances of pregnancy, look out for development of any other new symptoms and consider visiting your doctor/gynecologist at the earliest for thorough examination (to confirm pregnancy related changes/signs in body) and blood/serum HCG level test (to confirm/rule out pregnancy accurately). If pregnancy gets ruled out, further evaluation would be needed to look for the underlying cause for your absent/delayed periods. Treatment as needed (based on examination and investigations results) would be started to help you get your periods and regulate them. Consider being in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately. Drink plenty of water. Take adequate rest. Maintain healthy diet and lifestyle.
Take care.