if u experienced a period in my experiences (not a doc. former medic in army and worked in emergency rooms combat situations etc. plus have wife sister 16 yr old daughter 10 & 8yr old daughters who live with me since their birth and wife's family mostly women as well. ) a sign of a period plus period-like symptoms such as the bloating suggests a pms cycle. but nausea drowsiness may suggest something else like a cold or flu this time of year. may be stress-related depending on your personal life. i would contact a nurse or ob/gyn professional for further information to other medical possibilities and get a proper pregnancy test to rule it out or confirm. i hope i helped!
early period headache naseuous tired bloated but no other problems. i am worried i might be pregnant. i have had just those symptoms but nothing else.