Somatic Issues Due to Mental Illness

Does anybody else feel like they get just various somatic issues due to mental illness? Went through heart palpitations that got worse until it kind of just faded to not a problem. I feel like I get dizzy and headache when tired which is basically just by standing up and doing the smallest thing. Currently procrastinating on seeing a doctor for my gastrointestinal issues because I dread having to explain symptoms and going through uncomfortable tests. I know I really should eventually but I can’t help but feel that every physical symptom is just somehow a manifestation of my depression with a side of anxiety. My psych person is aware of my situation so it’s not an emergency situation. I try to keep a food diary but it’s hard for my depression brain to be consistent and I’ve seen no trends. But it’s just an extra pain to exist with the constant bloating and constipation or strange bowel movements.