Difference between angina, gerd, heart attack., muscle strain ?

On the seventeenth of September, I was out , " de-rusting " a bike, and getting any rust of the chain. Also, I did lift the bike ; a rockhopper.

I should mention, I am female, five foot three , one and ten pounds, mid thirties , with low ferritin level for six years, and low tranferrin level discovered a couple months back. Oh, and asthmatic.

On the morning of the eighteenth , about four a.m., I woke up, sweating a tiny bit. I thought " oh no, I am getting sick. " Went back to sleep.

On the eighteenth, around 3 in the afternoon, after taking a shower, while shaving, I had the worst chest pain ever. Could not bend over, could not move 1 inch to the left or 1 inch to the right, & couldn't pick up my purse; the purse is very light.

Felt like someone with exceedingly long nails squeezing the bleep out of my heart.

Took prilosec and have been taking prilosec now for 7 days, some tylenol , a baby aspirin, and put on salonpas patches. About one to one and a half hours later, the pain was more tolerable.

For the past several days, on a much less painful level, the chest pain has continued. Been trying to keep the tylenol to a minimum and the salonpas to 4 patches total a day, if that. 1 patch above the left breast and 1 patch below the left breast.

The pain doesn't seem to have any rhyme or reason. Not caused by climbing stairs, not from sitting up or lying down, not from late night eating or late night snacks , not from twisting or turning.

3 times it felt like the pain was a stretched rubber-band under my left breast and once under my right breast.

At some points, it feels like a ball is stuck between my breasts ; in the center of my chest , & sometimes it feels like there is a ball stuck beneath the left breast.

Inhalers; albuterol and qvar don't help.

What is likely to be ; chest pain from anemia , impending heart attack pain, muscle strain, gerd, peptic ulcer, or angina ?

Thank you