Helpp

My periods are irregular last time I had any sight of a period coming wss January 31st which was brown spotting so I thought my period was coming but it eventually never and then I haven't recieved a period for February I've never skipped a period before if I did it would come super later but it would still come could u list things of what it could be below ( Although I'm sexually active I doubt I could be Pregnant) I don't have any symptoms of anything except bloating, insomnia, constipation and diarrhea on and off, and rapid weight gain. Please list things below of what you think it could be btw I have an appointment tomorrow. Btw this the longest cycle I've ever had!!! Also have had alot of water discharge like a puddle or it's dry or just a bit creamy.