Hi everyone!

i am going to start off by saying how much of an anxious person I am, and have dealt with OCD, intrusive thoughts, and spurts of health anxiety for many years now! 
 

I recently had some issues with rectal bleeding, and couldn't trust the doctors diagnosis of hemorrhoids and pushed for a colonoscopy - I eventually got one and was given the all clear but something in my head was telling me "they've not done it right"/"they've missed something" for days after. 
now end of October I found a lump in my boob, went to the GP and resulted in a ultrasound scan at the breast clinic and again was given the all clear as fatty tissue. However the doctor only tested the area of my breast in which the lump was and didn't do all over or my other boob. I have now found another hard almost grainy like lump on my other boob and it feels quite tender when I press down on it? (You really have to press down to feel it) I'm now stressing and automatically assume I have cancer again. 
 

I check my boobs regularly but I don't know if I'm checking them too hard I.e pressing down with the tips of my finger right to the bottom, rather than using the palms of my fingers? I don't know if I'm feeling stuff that is just natural/normal. 
 

my head is on a spin again and can't take my mind off off it. Any advice would be appreciated

thankyou xx