At the same time, pay attention to the change of action. Your oblique barbell bend, I guess, refers to the priest's bench bend to exercise biceps. What you hurt is the external oblique muscle and the surrounding ligaments. Many members of my team have never said that biceps hurts the waist.
In your case, there is no need to worry. There are normal and abnormal injuries in bodybuilding training. You are too enthusiastic to start without warming up. It's normal and easy to get hurt. A lot of people do. They were very excited when they came to the gym. For example, they practice their legs, knees, ankles and waist before fully warming up. As a result, they did squats and hurt their waist at once. The result is a six-month to one-year break. Hehe, let's not say that the waist and legs are the "engine" of the body, just like the so-called "waist and horse are one" that martial arts practitioners say.
I don't know what equipment you are using. I suggest you control your legs in sports in the future. Keep your waist stable. Waist is too important! ! !
If you still want to practice, you should change some movements according to your actual situation, such as classic bending posture, dumbbell alternating bending, stretcher bending and so on.
Exercise should be scientific and gradual. I sum up your injury in two aspects. First, you haven't warmed up enough. Warm-up should not only warm up the muscles, but also warm up the whole body around the waist. You can do aerobic jogging on the treadmill until you sweat slightly, and then move your joints to stretch your ligaments. Don't be so bored that you wait to get hurt. Second, the action essentials are wrong. This is a big problem for many bodybuilders. Judging from your account, it is estimated that you haven't practiced for a long time. The same point is to standardize the essentials of action. You only need to master one thing, that is, thinking! ! ! ! ! Ideas! ! If you have a good idea, you can get twice the result with half the effort, and accidental injuries can be predicted in advance! !
This realm is not easy to achieve, it depends on your own efforts. You really love fitness inside.
Regarding your second question, I think you need to see a doctor in time. Don't say that six stomach problems need to see a doctor. Your stomach needs nursing! If you want to gain muscle, I suggest you eat less meat and more eggs, vegetables, tomatoes, cucumbers and bananas, especially bananas! Among them, you only need to eat two egg yolks every day. Throw away the others. Oh, I can't help it. Egg yolk has high cholesterol, so you can't eat more.
Limited by time, I can't say too much. I'm just talking about the nine Niu Yi hairs of bodybuilding.
The above are some humble opinions on my long-term fitness exercise and guidance, hoping to have the power to attract jade.