HI. I've Been Feeling Dizzy N Feeling Like I'm About

HI. I've been feeling dizzy n feeling like I'm about to faint n throw up but I dont. I've been getting:
• stomach pains
• lower back pains
• sometimes tender breast
• cramps (once in a while)
• once in a while real bad headaches
• eating then feeling to full and wanting to throw up
• feeling bloated
• feeling tired
• mood swings and stressed
• sensitive to smells

Idk what's wrong with me. And I'm worried but then no. What do I do? Or what's wrong with me??